Topic 6 Periodic Table

Question 1

Why was Newland’s work rejected?

Answer 1

His table assumed all elements were discovered
Some grouped elements weren’t similar
When creating the octaves, he put some elements in the same position

Question 2

Who was Mendeleev?

Answer 2

Mendeleev was a Russian Scientist who built off of Newland’s Law of Octaves and created the main foundation of the Periodic Table

Question 3

Name 4 Features of Mendeleevs Periodic Table?

Answer 3

Left Gaps
Arranged elements in groups and periods
Separated Metals and Non - Metals
Elements arranged in Atomic Mass

Question 4

Name 4 ways our Periodic Table is different to Mendeleevs one?

Answer 4

No Gaps
Noble Gases
Elements arranged in Atomic Number
Actinides and Lanthanides

Question 5

Name Group 1 of Periodic Table?

Answer 5

Alkali Metals

Question 6

Name Group 2 of Periodic Table?

Answer 6

Alkaline Earth Metals

Question 7

Name the Elements between Group 2 and 3?

Answer 7

Transition Metals

Question 8

Name of Group 7?

Answer 8

Halogens

Question 9

Name of Group 8?

Answer 9

Noble Gases

Question 10

Name 5 trends going down Group 1 and 2?

Answer 10

Bigger atoms
More reactive
More dense
Softer to cut
Lower melting and boiling points

Question 11

Name 4 trends going down group 7?

Answer 11

Bigger atoms
Less reactive
Less soluble
Increasing melting and boiling point

Question 12

Metal + Water —>?

Answer 12

Hydrogen + Metal Hydroxide

Question 13

Metal + Oxygen —>?

Answer 13

Metal Oxide

Question 14

Metal + Acid —>?

Answer 14

Salt + Hydrogen

Question 15

Metal + Halogen —>?

Answer 15

Metal Halide

Question 16

Give 4 observations of Potassium in water?

Answer 16

Floats on surface
Fizzing
Dissolves and disappears
Purple lilac flame

Question 17

4 observations of Sodium in water?

Answer 17

Rolls in to ball
Fizzes across surface
Gas given off
Heat created

Question 18

Give 5 physical properties of Chlorine?

Answer 18

Pale Green Gas
Denser than air
Toxic
Slightly soluble in water
Bleaches damp litmus paper

Question 19

Give 3 uses of Chlorine?

Answer 19

Water Sterilisation
Manufacturing of PVC
Bleach

Question 20

Source of Chlorine?

Answer 20

Electrolysis of Sodium Chloride

Question 21

Give a use of Noble Gases?

Answer 21

Glowing Neon Signs

Question 22

How did Newland’s arrange his periodic table? What were Octaves?

Answer 22

In Atomic Mass. Octaves were patterns were there were similarities between every 8th element