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Question 1

Contained in the nucleus are the…

Answer 1

Protons and neutrons

Question 2

Moving around the nucleus are the…

Answer 2

Electron shells

Question 3

What is the mass and charge of a proton

Answer 3

Mass 1
Charge +1

Question 4

What is the mass and charge of the neutron?

Answer 4

Mass 1
Charge 0

Question 5

What is the mass and charge of an electron

Answer 5

Mass very small
Charge -1

Question 6

What is the equation for relative atomic mass?

Answer 6

Sum of (isotope abundance x isotope mass number)
———————————————
Sum of abundances of all isotopes

Question 7

What is an isotope?

Answer 7

An element with the same number of protons, but a different number of neutrons. They have the same atomic number, but different mass number

Question 8

What is a compound?

Answer 8

A compound is when two or more elements are chemically joined

Question 9

What are mixtures?

Answer 9

There are no chemical bonds, so the element is easy to separate

Question 10

What is chromatography used for?

Answer 10

To separate out mixtures

Question 11

What is filtration used for?

Answer 11

To separate solids from liquids

Question 12

What is evaporation used for?

Answer 12

To separate a soluble salt from a solution; a quick way of separating out salt

Question 13

What is crystallisation used for?

Answer 13

To separate a soluble salt from a solution, a slow method of separating out salt

Question 14

What is the method for separating out salt from rock salt?

Answer 14

1. Grind the mixture of rock salt.
2. Add water and stir.
3. Filter the mixture, leaving the sand in the filter paper.
4. Evaporate the water from the salt, leaving the crystals.

Question 15

What is simple distillation?

Answer 15

Separating a liquid from a solution

Question 16

What is fractional distillation?

Answer 16

Separating out a mixture of liquids, fractional distillation can be used to separate out crude oil into fractions

Question 17

Where on the periodic table are non-metals found

Answer 17

The right of the table

Question 18

What is the traits of metals?

Answer 18

Strong, malleable, good conductors of electricity and heat. They bonded metallically

Question 19

What are the traits of non-metals?

Answer 19

Dull, brittle, and not always solids at room temperature

Question 20

What did John Dalton discover?

Answer 20

Atoms were first described as solid spheres

Question 21

What did JJ Thompson discover and when?

Answer 21

1897. The plum pudding model - the atom is a bowl of charge with electron scattered.

Question 22

What did Ernest Rutherford discover and when?

Answer 22

1909
Alpha scattering experiment mass concentrated at the centre. The nucleus is charged.

Question 23

What did James Chadwick discover and when?

Answer 23

Around 1940
Discovered there are neutrons in the nucleus

Question 24

What are the halogens?

Answer 24

Group 7 non-metals. As you go down the group, they become less reactive the melting and boiling points also become higher.

Question 25

What are noble gases?

Answer 25

Group 0 elements, including helium, neon and argon. They are unreactive because they have full outer shells which makes them stable. They are colourless gases at room temperature.

Question 26

What are the elements in the periodic table in order of?

Answer 26

Atomic mass/proton number 

Question 27

What does the group number show?

Answer 27

The number of electrons in the outer shell

Question 28

What are alkali metals?

Answer 28

Group, one elements, soft, very reactive metals. They all have one electron in the outer shell, making them very reactive. They are low density