Question

In: Chemistry

1. Write the complete electron configuration for the nickel(II)ion.Using NOBLE GAS notation write the...

1. Write the complete electron configuration for the nickel(II) ion.

Using NOBLE GAS notation write the electron configuration for the cobalt(III) ion.

2. Write the complete electron configuration for the common monatomic ion formed by the element fluorine, F.

This ion is a(n) with a charge of

3.(1) The element with a valence electron configuration of 4s24p2 is in group and period .

(2) The element with a valence electron configuration of 3s2 is in group and period

.4.(1) What is the valence electron configuration for the boron atom?

(2) What is the valence electron configuration for the calcium atom?

5.(1) What is the element with an electron configuration of 1s22s22p63s23p64s23d7?

(2) What is the element with an electron configuration of 1s22s22p63s23p64s23d104p2?

6.(1) The element with an electron configuration of 1s22s22p63s23p64s23d1 is in group and period .

(2) The element with an electron configuration of 1s22s22p63s23p64s2 is in group and period .

Solutions

Expert Solution

1. electron configuration for the nickel(II) ion.
Z= 28 : Ni2+ = 1s2 2s2 2p6 3s2 3p6 3d8

the electron configuration for the cobalt(III) ion.
Z= : 27 Co3+ = [Ar] 3d6

2. complete electron configuration for the ion formed by the element fluorine, F.
Z= 9 : F- = 1s2 2s2 2p4

This ion is an anion with a charge of -1

3.(1) The element with a valence electron configuration of 4s24p2 is in group 14 and period 4 .

(2) The element with a valence electron configuration of 3s2 is in group 2 and period 3

.4.(1) The valence electron configuration : boron atom

Z=5 : valance configurarion 2s2 2p1

(2) The valence electron configuration for calcium atom = 4s2

5.(1) electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d7 , then Z= 27
element = Co

(2) electron configuration 1s22s22p63s23p64s23d104p2 , Z= 32
element= Ge

6.(1) The element with an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d1 is in group 3 and period 4.

(2) The element with an electron configuration of 1s22s22p63s23p64s2 is in group 2 and period 4 .


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