2a - group1 alkali metals

Question 1

state three characteristics of the alkali metals

Answer 1

-all have 1 electron in their outer shell
-they are stored under oil
-they are very soft

Question 2

how do group 1 metals react with non-metals?

Answer 2

they form ionic compounds

Question 3

how do group 1 elements react with water?

Answer 3

they release hydrogen gas and form alkaline solutions - react vigorously with water

Question 4

how does reactivity change moving down group 1?

Answer 4

it increases as the atoms get larger

Question 5

what is group 1 of the periodic table called?

Answer 5

the alkali metals

Question 6

state two products formed when sodium reacts with water.

Answer 6

• sodium hydroxide
• hydrogen

Question 7

give two properties of group 1 metals.

Answer 7

they are soft
they are reactive

Question 8

why do alkali metals share similar chemical properties?

Answer 8

because they all have one electron in their outer shell.

Question 9

define the term ion.

Answer 9

an atom or molecule with a positive or negative charge due to the gain or loss of electrons.

Question 10

give the charge of ions when a group 1 metal loses an electron.

Answer 10

1+