C1 Periodic Table

Question 1

What order are the elements arranged in the modern periodic table?

Answer 1

Atomic number

Question 2

What order were they put into in the early periodic table?

Answer 2

Atomic mass

Question 3

How did Mendeleev improve the periodic table?

Answer 3

Left gaps

Question 4

Why doesn?t it work to put the elements in order of atomic weight?

Answer 4

Because of isotopes

Question 5

Where are metals found on the periodic table?

Answer 5

Left hand side

Question 6

Do metals form positive or negative ions?

Answer 6

Positive

Question 7

What are elements in group 0 called?

Answer 7

Noble gases

Question 8

How reactive are the group 0 elements?

Answer 8

Very unreactive

Question 9

How does the boiling point of the noble gases change as you go down the group?

Answer 9

Increases (gets higher)

Question 10

Which group are the alkali metals?

Answer 10

Group 1

Question 11

How reactive are the alkali metals?

Answer 11

Very reactive

Question 12

What do the alkali metals react with oxygen to make?

Answer 12

Metal oxides

Question 13

What do the alkali metals react with chlorine to make?

Answer 13

Metal chlorides

Question 14

What do the alkali metals react with water to make?

Answer 14

Metal hydroxides and hydrogen

Question 15

How does the reactivity of the alkali metals change as you go down the group?

Answer 15

Get more reactive

Question 16

What group are the halogens?

Answer 16

Group 7

Question 17

They exist as diatomic molecules. What does diatomic mean?

Answer 17

Two atoms bonded together

Question 18

How does the reactivity of the halogens change as you go down the group?

Answer 18

Get less reactive