Atoms and the Periodic Table

Question 1

What is group 7 called and do?

Answer 1

Halogens- very reactive gases

Question 2

What is group 1 called?

Answer 2

Alkali metals

Question 3

What does group 8/0 do?

Answer 3

Noble gases, very un reactive gases

Question 4

What is and element made up of

Answer 4

One type of atom

Question 5

What is a compound

Answer 5

Two or more chemicals joined together

Question 6

What is a mixture

Answer 6

When mixed not joined

Question 7

Molecule?

Answer 7

Atoms are joined together but they can be the same element or different unlike a compound

Question 8

Where are the protons and neutrons found?

Answer 8

Nucleus

Question 9

Where are the electrons located

Answer 9

Electron shell

Question 10

Protons and electrons =

Answer 10

Atomic number

Question 11

What is the valency number order

Answer 11

1234321

Question 12

What is Nuclide Notation

Answer 12

Notation is a special way of writing, the symbol of an element showing information to help us find out what are atoms are made up from.

Question 13

What is a diatomic element

Answer 13

A diatomic elements made up of two atoms

Question 14

How to find mass formula

Answer 14

Add the masses of each of the present atoms

Question 15

What is the pattern of equations

Answer 15

Reactant+reactant -> products

Question 16

Define Exothermic

Answer 16

Release energy to surroundings and increase temp

Question 17

Define endothermic

Answer 17

Absorb energy from the surroundings and decrease energy

Question 18

What’s a solute?

Answer 18

Substance which is being dissolved

Question 19

What is a solvent?

Answer 19

A solvent is the substance in which the solute is being dissolved in

Question 20

What is a solution?

Answer 20

What is mean by dissolving a solute in a solvent?

Question 21

How can we speed up dissolving

Answer 21

• increase temperature
• stirring
• breaking solute into smaller pieces

Question 22

Name 3 separating techniques

Answer 22

Evaporation
Distillation
Filtration