Perioic Table

Question 1

What is the Periodic Table a list of?

Answer 1

Elements

Question 2

Two main categories of elements

Answer 2

Metals and nonmetals

Question 3

What are group 1 called?

Answer 3

Alkali Metals

Question 4

Group 1 examples

Answer 4

Lithium, sodium and potassium

Question 5

Properties of group 1 metals

Answer 5

Very soft and stores under oil to keep air and water away from them because when they react with water they form metal hydroxides

Question 6

products of group 1 metals with water

Answer 6

(Metal) hydroxide and hydrogen

Question 7

Trend in reactivity in group 1

Answer 7

Gets more reactive as you descend

Question 8

Word equation for reactions of group 1 metals and water

Answer 8

Metal + Water ————> Metal Hydroxide + Hydrogen

Question 9

How to test for hydrogen

Answer 9

Squeaky Pop Test - Light a splint and hover over test tube. If a squeaky pop sound is heard, hydrogen is present

Question 10

Group 2 name

Answer 10

Alkali Earth Metals

Question 11

observations and products when group 2 are added to water

Answer 11

Forms a metal hydroxide and hydrogen and the metals dissapear

Question 12

Examples of group 2

Answer 12

strontium, calcium and magnesium

Question 13

Trend in reactivity group 2

Answer 13

More reactive as descends

Question 14

Reactivity comparison group 2 to group 1

Answer 14

Group 2 less reactive than group 1

Question 15

Group 7 name

Answer 15

Halogens

Question 16

Colour and state and use of fluorine

Answer 16

Yellow gas used for insulation for electrical tower

Question 17

Colour and state and use of chlorine

Answer 17

Yellow green gas used for disinfect water

Question 18

Colour and state and use of bromine

Answer 18

Red brown liquid used for agriculture

Question 19

Colour and state and use of Iodine

Answer 19

Black solid used for thyroid health

Question 20

Diatomic molecule

Answer 20

Two atoms of same or different elements that are chemically bonded

Question 21

Trend in reactivity in the halogens

Answer 21

The reactivity decreases as it descend

Question 22

Staircase metals from non metals

Answer 22

From Boron, smaller side is non metal

Question 23

Test for metal/non metal electricity

Answer 23

This experiment tests the conduction of electricity by clipping the substance onto two wires and attaching it to a circuit to see if the bulb will still light up.

Question 24

Non/metal experiment test conducts

Answer 24

The second experiment tests if the substance conducts heat. To do this, you get a beaker of hot water and put the materials in. You then start the clock and touch the ends of the substances to see if they are warm.

Question 25

All group 1 appearance and when cut

Answer 25

Black to silver

Question 26

Lithium with water observations

Answer 26

Floats, fizzes steadily and becomes smaller, disappears

Question 27

Sodium with water observation

Answer 27

Melts to form a ball that moves on the surface, fizzes rapidly, hydrogen produced my burn with an orange flame before the sodium dissapears

Question 28

Potassium with water observation

Answer 28

Melts and floats, moves very quickly on the surface, hydrogen ignites instantly, metal is set in fire with sparks and a lilac flame, small explosion at the end