Chem 8.7 The Group 2 elements

Question 1

What are the elements in Group 2?

Answer 1

Beryllium
Magnesium
Calcium
Strontium
Barium
Radium

Question 2

What is common about all Group 2 elements’ electron arrangement?

Answer 2

They all have 2 electrons in their outermost shell.

Question 3

What is the other name for Grop 2 elements?

Answer 3

Alkaline Earth metals

Question 4

What is the trend in density for Group 2 metals?

Answer 4

There is no significant trend, but they are denser than Alkali metals.

Question 5

What is the trend in melting and boiling points for Group 2 metals?

Answer 5

As you go down the group, melting and boiling points decrease.

Question 6

What is the trend in chemical reactivity for Group 2 metals?

Answer 6

As you go down the group, reactivity increases.

Question 7

What are the products when Group 2 metals react with water?

Answer 7

Hydrogen (through bubbles) & the metal dissolves to give an alkali solution (metal hydroxide).

Question 8

Calcium + Water → ?

Answer 8

Calcium hydroxide + Hydrogen

Question 9

What are the products when Group 2 metals react with acid?

Answer 9

Hydrogen (through bubbles) & the metal reacts with the acid to produce a salt (metal chloride, if reacted with HCl).

Question 10

Magnesium + Hydrochloric acid → ?

Answer 10

Magnesium chloride + Hydrogen

Question 11

A common pattern with chemical reactivity for Group 2 elements is?

Answer 11

They get more vigorous as you o down the group.