Question

Please help me I will give you the brain thing and extra points. image below

Which of the following trends can be observed when moving down a column in the Periodic Table?

Question 1 options:

The atomic mass decreases.

The number of valence electrons remains the same.

The number of orbitals decreases.

The possible number of bonds formed decreases.

Answer 1

The second on :” the number of valence electrons stays the same” because a valence electron is the number of electrons on the outer shell of the atom and if it’s in group one then the outer shell of any element will have one electron on its outer shell