C1 - Periodic Table

Question 1

Who left GAPS in the periodic table for PREDICTING new elements

Answer 1

Dmitri Mendeleev

Question 2

Physical properties of metals

Answer 2

Metallic Bonding:
-Strong, but can be bent or hammered into different shapes (malleable)
-Great conductors of heat and electricity
-High boiling and melting points

Question 3

What are the GROUP 1 elements called?

Answer 3

Alkali Metals

Question 4

Properties of ALKALI METALS?

Answer 4

-Soft and have low density
As you go down:
-Increase in reactivity
-Lower melting and boiling points
-Higher relative atomic mass

Question 5

ALKALI METAL reaction with WATER

Answer 5

React vigorously to produce hydrogen gas and metal hydroxides

Question 6

ALKALI METAL reaction with CHLORINE

Answer 6

React vigorously to form metal chloride salts

Question 7

ALKALI METAL reaction with OXYGEN

Answer 7

Metal oxide

Question 8

What happens to the HALOGENS as you go down GROUP 7

Answer 8

-Become less reactive - harder to gain an extra electron
-Higher melting and boiling points
-Higher relative atomic masses

Question 9

What happens to halogens in a displacement reaction

Answer 9

More reactive halogen displaces less reactive

Question 10

What is group 0 called?

Answer 10

Noble gases

Question 11

Why are Noble Gases Inert?

Answer 11

Full outer shell - Monatomic