Topic 1 - Atomic Structure and the Periodic Table

Question 1

What 3 things are an atom made up of?

Answer 1

Protons, Neutrons and Electrons

Question 2

Which 2 of these make up the nucleus?

Answer 2

Protons and Neutrons

Question 3

What charge do the Protons have?

Answer 3

Positive

Question 4

What charge do the Neutons have?

Answer 4

No Charge

Question 5

What charge do the Electrons have?

Answer 5

Negative

Question 6

What charge does the Nucleus have?

Answer 6

Positive

Question 7

Where is almost all of the mass concentrated in an atom? Why?

Answer 7

The nucleus, because the atomic mass of the electrons is almost nothing

Question 8

If the electrons aren’t in the nucleus then where?

Answer 8

The electron shell

Question 9

What charge do atoms have? Why?

Answer 9

No Charge, because there are always an equal number of protons and electrons so they cancel out

Question 10

What three pieces of information does a nuclear symbol give you?

Answer 10

The element, Atomic Number and Mass Number

Question 11

What is the atomic number?

Answer 11

This is the amount of protons

Question 12

What is the mass number?

Answer 12

This is the protons plus the neutrons because they both have a relative mass of 1 whereas electrons have almost no mass

Question 13

What is an ion?

Answer 13

This is a charged atom meaning they are missing or have extra electrons

Question 14

What is a substance with every atom containing the same number of protons called?

Answer 14

An element

Question 15

What is a substance with every atom containing a different number of protons called?

Answer 15

A Compound

Question 16

What is an isotope?

Answer 16

An element with extra neutrons

Question 17

When is reletive atomic mass used?

Answer 17

When talking about an element as a whole to account for different isotopes

Question 18

How do you work out the relative atomic mass?

Answer 18

Sum of (Isotope Abundance x Isotope mass number)/ Sum of Abundance of all the isotopes