Chemistry, asked by greatisme, 1 year ago

elements X Y and Z have atomic number 6 9 and 12 respectively which one
a) forms an anion
b) forms a cation
c) has four electrons in its valence shell​

Answers

Answered by karthikeya7934
7

Explanation:

a.Element Y form anion by gaining 1 electron

b.Element Z can from cation by losing electron

c.element X have 4 electrons in its valence shell

as its electronic configuration of X is 1s^2 2s^2 2p^2

Answered by sivagovindarao76
3

Answer:

Atomic number with 9 forms anion .

Atomic number with 12 forms cation .

Atomic number with 6 has four electrons in it's valence shell .

Explanation:

a) Flourine is the element with atomic number 9 .

It's electronic configuration is 1s2 2s2 2p5.

It requires one more electron to attain stable configuration of 2p6. hence it exists as anion. F_ .

b) Magnesium is the element with atomic number 12. it's electronic configuration is 1s2 2s2 2p6 3s2 . if it looses 2 electrons then it will attain stable configuration of neon. so it exists as cation mg+2.

c) carbon is the element with atomic number 6 . it's electronic configuration is 1s2 2s2 2p2 . it has four valence electrons . if it looses four electrons it can attain stable configuration of helium . if it gains four electrons it can attain stable configuration of neon.

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