What are the parts of an electron configuration?

Answers

Answer 1

Answer:

Explanation:

electronic confirmation=1s^2,2S^2,2P^6,3S^2

atomic no.is 12 therefore :- this is magnesium

Period=3

Block=s-block

Group=II A


Related Questions

heyyyyyyy......................

Answers

Answer:

helllllooooooo hi how is life

Answer:

hiiii

Explanation:

1. What is the name of the ion formed from the sulfur atom?
Sulfuride
Sulfurous
Sulfur
Sulfide

2. Which of the following elements does not form an ion with a charge of +1
A:Sodium
B:Fluoride
C;Potassium
D:Hydrogen

3. The chemical properties of an element are largely determined by____
A:The number of valence electrons they have
B:The number of total protons the element has
C:The number of total ions the element has
D:The number of total electrons the element has

5. How does magnesium obey the octet rule when reacting to form compounds?
A. It gives up electrons
B. Magnesium does not obey the octet rule.
C. It gains electrons
D. It does not change its number of electrons

6. How many electrons does strontium have to give up to achieve a noble gas electron configuration?
0
1
2
3

Answers

Answer:

1 sulfide

2 Fluoride

3 A

5 A

6 2

PLEASE HELP ME ANSWER THE TWO MULTIPLE CHOICE QUESTIONS!!!

ITS FOR CHEM:(

I’LL GIVE BRAINIEST:)

Answers

Answer:

4.D. 2KJ

5.B. close to 0 degree celsius

Explanation:

heat absorbed= heat given out

100g * 4.2 * (x-0)= 400g * 4.2* ( 20-x) where x is the new temp reached

then x= 20

i.e. the temperature of ice increases to 5 degree celsius and the temperature of water decreases to 5 degree celsius .

hope it helps

The spontaneous disintegration (breaking down) of a nucleus into slightly
lighter and more stable nucleus describes
A.nuclear fusion
B. nuclear fission
C. radioactive decay
D. nuclear radiation

Answers

Answer:

Radioactive Decay

Explanation:

How does the suns energy contribute to the movement of water in the water cycle?

Answers

Answer:

The sun is what makes the water cycle work. ... Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds... clouds that move over the globe and drop rain and snow. This process is a large part of the water cycle.

Explanation:

Answer it doesn't contribute

Explanation: it doesn't contribute

​Which of the following structures are found in eukaryotes, but not prokaryotes?
A) Cytosol

B) Cilia

C) Golgi body

Answers

Answer:

B

Explanation:


What type of a solution is 60g NaNO3 at 40°C in
100g H202

Answers

Answer:

Explanation:

Saturated solution

Answer:





Explanation:saturated solution

Which of the following is the final stage of development before birth?
a
zygote
b
embryo
c
uterus
d
fetus

Answers

Answer:

D. Fetus

Explanation:

69. Sequencing Arrange these hydrates in order of
increasing percent water content: MgSO;-7H.O.
Ba(OH)2-8H.O. COC1, 6H2O.

Answers

In order of  increasing percent water content:CoCl₂.6H₂O, Ba(OH)₂.8H₂O, MgSO₄.7H₂O

Further explanation

[tex]\tt \%element=\dfrac{Ar~element}{MW~compound}\times 100\%[/tex]

CoCl₂.6H₂O.MW=237.90 g/mol

6H₂O MW = 6.18=108 g/mol

[tex]\tt \%H_2O=\dfrac{108}{237.9}\times 100\%=45.4\%[/tex]

MgSO₄.7H₂O.MW=246.48 g/mol

MW 7H₂O = 7.18=126 g/mol

[tex]\tt \%H_2O=\dfrac{126}{246.48}\times 100\%=51.1\%[/tex]

Ba(OH)₂.8H₂O MW=315.48 g/mol

MW 8H₂O = 8.18=144 g/mol

[tex]\tt \%H_2O=\dfrac{144}{315.48}\times 100\%=45.6\%[/tex]

I need to find the orbit notation
1. Ne - 1s 2s 2p 3s 3p 4s 3d 4p 5s​

Answers

Answer:

1s*2 2s*2 2p*6

Explanation:

atomic number of neon is 10 so the s-shell contains 2 electron and p-shell contains 6

How do limestones that begins as a coral be found on land?

Answers

Answer:The limestone began to form millions of years ago, when the land was under the ocean. The rock developed from shells of tiny organisms that float in the ocean. ... However, in the case of reefs, the limestone is produced directly as coral organisms build their skeletons one on top of another.


1. Calculate the amount of heat required for 25.0 grams of water tochange from 10 degrees Celsius to 30 degrees Celsius.

2. 50.0 grams of water at 100 degrees Celsius evaporated to water vapor 2 points
at 100 degrees Celsius. Calculate the amount of heat required for this
conversion.

3. A student measured 15.0 grams of ice in a beaker. The beaker was then
placed on a hot plate where it was heated uniformly for a certain amount
of time. During the melting process of the ice, the student noted that the
temperature was at 0 degree Celsius. When all the ice converted to water,
the final temperature was also at 0 degree Celsius. How much heat was
used to melt the ice?

4. If 5.0 grams of water was cooled from 50 degrees Celsius to 40
degrees Celsius, then calculate the amount of heat released by the water.

5. A certain amount of water used exactly 84.0 Joules of heat energy to
change from 25.0 degrees Celsius to 35 degrees Celsius. How many
grams of water was used?


Please help me

Answers

Answer:

Explanation:

1 )

amount of heat required = mass x specific heat x rise in temperature

= 25 x 4.2 x 20 = 2100 J .

2 )

Amount of heat required

= mass x latent heat of vaporisation

= 50 x 2260 = 113000 J  .

3 )

Amount of heat required in melting the ice

= mass x latent heat of fusion

= 15 x 336 = 5040 J

4)

heat released in cooling water

= mass x specific heat x fall in temperature

= 5 x 4.2 x 10

= 210 J

5 )

amount of heat required = mass x specific heat x rise in temperature

84 = mass x 4.2 x 10

mass = 2 grams .

How many elements are in H
a) 3
b) 2
c) 1
d) 5​

Answers

Answer: C (1)

Explanation:

H is only the element hydrogen.

Hydrogen is an element itself, so therefore there is only one element in it! The answer is C. Hope this helps!

How do I find the formula for Phosphorus Tetroxide

Answers

Formula= P4O6
You are going to want to flip the elements subscripts with one another.
P6O4
P will just stay as phosphorus, but since oxygen has 4 atoms, itbwill become tetroxide

Chemical and physical element properties are determined by their valence electrons. How do you describe metals with only one valence
electron?
A .highly reactive
B. poor conductors of electricity
C. reactive with other metals
D. likely to gain more electrons

Answers

Answer:

B

Explanation:

Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity. Option B is correct.

What are valance electrons?

Valence electrons are the electrons present at the valance shell or orbit of the atom and always take part in the chemical reaction or reaction with other metals and can conduct electricity.

If the atom contains only one valance electron in the outermost shell or valance shell then it cannot conduct the electricity properly due to the fewer number of electrons.

Therefore, Option B is correct. Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity.

Learn more about valance electrons, here:

https://brainly.com/question/866518

#SPJ2

which statement is true of the particles that make up a substance?
a. Particles in a liquid and particles in a solid have the same amount of energy
b. Particles in a solid have more energy than particles in a gas
c. Particles in a gas have more energy than particles in a liquid
d. Particles in a liquid have more energy than particles in a gas.

Answers

Answer: particle in gas have more energy than the particles in a liquid

Explanation: this is because the amount of energy is directly proportional to how random the system is. gaseous molecules are in a more constant random motion than the liquid molecules

The reactants in a chemical equation have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms. In order to follow the conservation of matter, the products of the chemical equation will have

Answers

Answer:

The same amount of atoms (3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms).

Explanation:

According to the law of conservation of mass, when a chemical reaction takes place there is no synthesis or degradation of matter, that is, matter can be neither created nor destroyed. It can only be transformed.

Therefore, in a chemical reaction the atoms are conserved. That means that the elements that in definite proportions are forming a compound, will reorganize to form new compounds, and the amount and type of atoms of the products will be the same as the reactants.

In summary, if the reactants in a chemical equation have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms, the products of the chemical equation will have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms as well.

PLEASE HELP!
How many moles of NaOH would produce 10 moles of water in this reaction?
2NaOH + H2SO4 → Na2SO4 + 2H20

Answers

Answer:

The correct answer is 10

______ have trees with cones.
A. temperate rainforests
B. boreal forests
C. tropical rainforests
D. temperate deciduous forests

Answers

D would be the correct answer for this

Answer:

D.

Explanation:

asthenosphere
OA.
oceanic continental convergent boundary
B.
oceanic-oceanic convergent boundary
O c.
divergent boundary
D.
transform boundary
Awnser I know if ur right I’ll mark brainlesst

Answers

Answer:C

Explanation:The samples are composed of different proportions of copper and zinc

If a compound begins with a metal, it most likely is a _______ compound

metallic

molecular

covalent

ionic

Answers

Answer:

A

Explanation:

If a compound begins with metal, it is most likely to be a metallic compound. Thus, option A is correct.

The metallic compound has been formed when the metal has been bonded with a metal or more than 1 metal by the ionic or covalent interaction.

The ionic interactions result in between the metal and non-metal or between two metals, and the covalent interactions have been found in the nonmetals.

The molecular compound has been the one that has been formed a molecule. All the compounds are molecular compounds.

Thus, if it starts with metal, it has been most likely to form a metallic compound. Thus, option A is correct.

For more information about the compounds with metal, refer to the link:

https://brainly.com/question/18665430

Which object is an insulator?

A. Iron

B. Copper

C. Plastic

D. Salt water ​

Answers

Answer:

c. plastic is an insulator

Explanation:

a and b are metals which are conductors and d contains water which is also a conductor

Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?

Question 5 options:
O

I

i

Ca

Answers

Answer:

O, I, Ca

Explanation:

what are most of the needed formulas to find the molar volume and the molar concentration (Cm) 11th grade chemistry​

Answers

Answer:

Explanation:

molar volume=moles*given volume

for molar concentration we use two formulas molarity and molality

molarity=no of moles/volume

molality=no of moles/kilogram

science againnnnnn helppp!!!!!

Answers

Answer: this is not my own words :)

Learn how factors, such as exposure to the atmosphere, the composition of rock and climate affect the rate of weathering. Weathering is the mechanical or chemical process by which rocks are broken down. The weathering that happens to rocks can be understood by relating it to the digestion of a chocolate chip cookie

One of the factors that affects the rate of weathering is exposure to the atmosphere. ... Another factor that affects the rate of weathering is the composition of rock. Rocks are composed of minerals, which are solid substances found within rocks that have their own distinct chemical composition.

i need help with my assignment asap​

Answers

1) taking drugs to prevent diseases

2) liver cirrhosis

3) valve

Urgent !!!!!!!!!! Due today plzzzzz help me

Answers

Answer:

Explanation:

a. H3O+

b.  H3O+

c. CH3C(OH2)+

HELP ASAP

Describe the function of Cytokinesis in the cell cycle.

Answers

Cytokinesis ensures that one nucleus ends up in daughter cells during cell division

can someone help me with this

Answers

Location A. 0.7g/mL will have a lesser density compared to the other ones, meaning the object will float instead of sink. If the density is higher, like 0.9, then the object will sink until it hit location B, then it would start to float again.

Most plastics are made from oil or natural gas. One step in making plastics from these resources is called cracking. Cracking is a process that breaks down bigger molecules into smaller ones. In one cracking reaction, ethane breaks down to become ethylene and hydrogen. During this process, thermal energy is absorbed from the surroundings and converted to chemical energy.

True or False

Answers

Answer:

true im pretty sure

Explanation:

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