Question

iii. In which block, group and period in the periodic table would you place each of the elements with the following electronic configuration? (3)
a. 1s2 , 2s2 , 2p5 b. 1s2 , 2s2 , 2p6 , 3s2

Answer 1

Answer:

a) sodium

group - 1

Block - S

period -3

b) Magnesium

group - 2

block -s

period - 3