Atomic Structure And The Periodic Table

Question 1

What does the relative atomic mass contain (top number) ?

Answer 1

Protons and neutrons

Question 2

What does the atomic number (bottom number) contain ?

Answer 2

Protons and also electrons

Question 3

What’s the charge of a proton ?

Answer 3

+1

Question 4

Whats the charge of a neutron ?

Answer 4

0

Question 5

What’s the charge of an electron ?

Answer 5

-1

Question 6

Whats the mass of a proton ?

Answer 6

1

Question 7

Whats the mass of a neutron ?

Answer 7

1

Question 8

What’s the mass of a electron ?

Answer 8

0

Question 9

Whats the only things can change the protons and neutrons in the nucleus ?

Answer 9

Nuclear radiation

Question 10

Whats the equation for uncertainty ?

Answer 10

Uncertainty = range / 2

Question 11

Whats the chemical symbol for sodium ?

Answer 11

Na

Question 12

Whats a mixture ?

Answer 12

Two substances not chemically combined

Question 13

Was two things do you need to filter insoluble solids from a solution ?

Answer 13

Filter paper

Filter tunnel

Question 14

How do you do crystallisation ?

Answer 14

1. Put solution in evaporating Basin and heat over bunsen burner
2. The crystals will form at the bottom over a water bath
3. Dry the salts and leave to cool

Question 15

What’s an isotope ?

Answer 15

An atom elements with the same atomic number but a different mass number

Question 16

What are transition metals ?

Answer 16

They have high melting points and densities, and are strong and hard. They form coloured compounds and act as catalysts

E.g

Magnesium

Iron

Cobalt

Question 17

Who created the periodic table ?

Answer 17

Mendeleev

Question 18

What are the properties of metals ?

Answer 18

High melting and boiling

Malleable

Good conductor

Question 19

What’s the properties of non metals ?

Answer 19

Low melting and boiling point

Brittle

Poor conductor