W an inert gas with the biggest atomic size
P an alkali metal in the second period
X a halogen that is least active
D an element that needs three electrons to become stable and it is found in the third period K an atom that readily yields a 2+ ion in the fourth period
B has an electronic configuration of 1s2 2s2 2p6 3s2 3p1
A has 6 protons in its nucleus
R has an atomic number one less than A
O has an atomic number one more than A
S has 8 more protons in its nucleus than D
F has only one proton
Y is one shell greater than B and they are found in the same group
I has the largest atomic number in the group of IVA
T is found in the fourth period and having an electronic configuration of
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4
C an atom that is one period more than U and 1 period less than X
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Expert's answer
2020-11-02T08:28:36-0500
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