Periodic Table

Question 1

Periodic law

Answer 1

The properties of the elements occur periodically when the elements are arranged in increasing order by their
atomic numbers.

Question 2

What happens to the size of the atom as you move left to right of the row

Answer 2

The size decreases because the nuclear charge
increases

Question 3

Isotopes

Answer 3

Atom of the same element with different atomic masses

Question 4

Isotopes of H

Answer 4

Regular
Deuterium
Tritium

Question 5

Group 1

Answer 5

-Alkali metals
-Very reactive
-more reactive and metallic down the group
-1valence electron

Question 6

Group 2

Answer 6

-Alkali earth metals
-Reactive metals
-More reactive and metallic down the group
-2 valence electrons

Question 7

Group 16

Answer 7

-Chalogens
-reactive
-Less reactive and more metallic down the group
6 valence electrons

Question 8

Group 17

Answer 8

-Halogens
-Very reactive
-Leas reactive and more metallic doesn’t be group
-7 valence electrons

Question 9

Group 18

Answer 9

-Noble gases
-Very stable
-Don’t react under normal conditions
-8 valence electrons