Question

• A. i-b, ii-a, iii-d, iv-c, v-e
• B. i-a, ii-b, iii-c, iv-d, v-e
• C. i-e, ii-c, iii-a, iv-b, v-d
• D. i-a, ii-d, iii-b, iv-e, v-c

Answer 1

Answer:

D. i-a, ii-d, iii-b, iv-e, v-c

• The correct answer is option 4: i-a, ii-d, iii-b, iv-e, v-c.

• The modern periodic table consists of 18 groups and 7 periods.

• The K shell can hold a maximum of 2 electrons, the L shell can hold a maximum of 8 electrons, and the M shell can hold a maximum of 18 electrons.

• There are a total of 4 blocks in the periodic table: s, p, d, and f blocks.