Atomic Structure and the Periodic Table

Question 1

Atom structure Charges

Answer 1

Positive nucleus
Negative electrons
Positive Proton
Neutral Neutron

Question 2

Isotope

Answer 2

Same protons, different neutrons.

Question 3

Relative atomic mass

WITH MORE THAN ONE ISOTOPE

Answer 3

(Isotope1mass * abundance) + (isotope2mass * abundance)
/ 100

(Abundance is %)

Question 4

Group 1

Answer 4

Alkali metals

Electrons are lost easier down group

Question 5

Group 7

Answer 5

The halogens
Electrons are harder to gain down group
Reactivity decreases down group.