Chem 8.6 The Group 1 elements

Question 1

What is a group?

Answer 1

It is a column in the periodic table.

Question 2

What are the elements present in Group 1?

Answer 2

Lithium
Sodium
Potassium
Rubidium
Caesium
Francium

Question 3

What is the other name for Group 1 elements?

Answer 3

Alkali metals

Question 4

What properties do Group 1 metals share with other metals?

Answer 4

They are shiny.

They conduct electricity.

Question 5

What is the trend in density for Group 1 metals?

Answer 5

As you go down the group, density increases.

Question 6

What are the trend in melting and boiling points for Group 1 metals?

Answer 6

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

Question 7

What is the trend in chemical reactivity for Group 1 metals?

Answer 7

As you go down the group, reactivity increases; they get more vigorous.

Question 8

When reacting with water, what 2 products are formed?

Answer 8

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

Question 9

TRUE OR FALSE?

Potassium + Water → Potassium Oxide + Hydrogen

Answer 9

TRUE

Question 10

TRUE OR FALSE?

Sodium + Water → Sodium Hydroxide

Answer 10

FALSE

Question 11

TRUE OR FALSE?

Lithium + Water → Lithium Hydroxide + Hydrogen

Answer 11

FALSE

Question 12

Why do all Group 1 elements have similar properties?

Answer 12

They all have similar electron arrangements, with 1 electron on their outermost shell.