Group 2 Metals

Question 1

What are group 7 elements?

Answer 1

Highly reactive non-metals that need to gain 1 electron to form 1- ions and achieve a full outer shell of electrons.

Question 2

How does the atomic radius change as you go down group 7?

Answer 2

The atomic radius increases down the group due to additional electron shells

Question 3

How does the reactivity change as you go down group 7?

Answer 3

The group’s reactivity decreases. The halogens need to gain 1 electron. As you go down group 7, the atomic radius increases, reducing the nucleus’s attraction to the outer electrons due to increased shielding. Therefore, it is harder to attract an electron.

Question 4

How does the ionisation energy change as you go down group 7?

Answer 4

The ionisation energy decreases as you go down group 7 due to greater atomic radius and increased sheilding.