A. A main group element with the valence electron configuration 2s 1 is in perio

Question

A. A main group element with the valence electron configuration 2s1 is in periodic group .
It forms a monatomic ion with a charge of .
B. A main group element with the valence electron configuration 2s22p5 is in periodic group .
It forms a monatomic ion with a charge of .

A. An element with the valence electron configuration 2s1 would form a monatomic ion with a charge of .
In order to form this ion, the element will  (lose/gain) electron(s) from/into the subshell(s).

B. If an element with the valence configuration 4s13d5 loses 2 electron(s), these electron(s) would be removed from thesubshell(s).

A. An element with the valence electron configuration 2s1 would form a monatomic ion with a charge of .
In order to form this ion, the element will  (lose/gain) electron(s) from/into the subshell(s).
B. An element with the valence electron configuration 2s22p4 would form a monatomic ion with a charge of .
In order to form this ion, the element will  (lose/gain) electron(s) from/into the subshell(s).

Enter the type of subshell affected by the gain or loss of electrons.
DO NOT enter the specific subshell.


For example:

If electrons are added to the 3p subshell, enter p.
If electrons are lost from the 4s and 3d subshells, enter s + d.

Explanation / Answer

A. A main group element with the valence electron configuration 2s1 is in periodic group-1 .
It forms a monatomic ion with a charge of +1
B. A main group element with the valence electron configuration 2s22p5 is in periodic group-17 .
It forms a monatomic ion with a charge of -1

A. An element with the valence electron configuration 2s1 would form a monatomic ion with a charge of +1
In order to form this ion, the element will  lose electron(s) from thesubshell 2s.

B. If an element with the valence configuration 4s13d5 loses 2 electron(s), these electron(s) would be removed from the subshells 4s and 3d.

A. An element with the valence electron configuration 2s1 would form a monatomic ion with a charge of +1
In order to form this ion, the element will  lose electron from the subshell 2s
B. An element with the valence electron configuration 2s22p4 would form a monatomic ion with a charge of -2
In order to form this ion, the element will  gain electrons into thesubshell 2p

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