2 a Group 1 metals

Question 1

Trends as you go down the group 1

Answer 1

-Relative atomic mass increases
-Melting point decreases
-Boiling point decreases
-Density increases
-Reactivity increases

Question 2

Explain the trends as you go down the group one

Answer 2

Atoms increase in size. The electrons (-) on the outer shell are further away from the nucleus (+), losing attraction as the distance increases. The outer electrons are easier to lose.

Question 3

Are group 1 metals hard or soft

Answer 3

Soft (can be cut with a knife)

Question 4

Are group 1 metals melting points high or low

Answer 4

Low

Question 5

Are group 1 metals more or less dense than water

Answer 5

Less

Question 6

When gr 1 metals react with water, what is produced

Answer 6

Hydroxides (alkaline)

Question 7

What are the physical properties of group 1

Answer 7

-Soft
-Low melting & boiling points
-Low density
-Shiny

Question 8

How should group 1 be stored

Answer 8

In oil (very reactive)

Question 9

Observations when gr 1 is added to water

Answer 9

-Float
-Move
-Melt
-K & Na in flames