Structure of the Atom - Half Term 1

Question 1

What is the relative charge of a proton?

Answer 1

+1

Question 2

Where is the proton found?

Answer 2

Nucleus

Question 3

An elements _______ number is the amount of protons it possesses

Answer 3

Atomic

Question 4

What is a proton’s relative atomic mass?

Answer 4

1

Question 5

What is the relative charge of an electron?

Answer 5

-1

Question 6

Electrons are found in the _______ which ‘orbit’ (for now) the _______

Answer 6

a. shells
b. nucleus

Question 7

True or False: the number of negative electrons ALWAYS equals the amount of protons in an atom, meaning atoms have no overall electric charge

Answer 7

True

Question 8

What is an electron’s relative atomic mass?

Answer 8

1/2000 (we approximate this to be 0)

Question 9

What is the relative charge of a neutron?

Answer 9

0 - they are neutral

Question 10

Where is the neutron found?

Answer 10

In the nucleus

Question 11

What is the relative atomic mass of a neutron?

Answer 11

1

Question 12

Overall, the nucleus is (positive/negative/neutral)

Answer 12

Positive

Question 13

What is the relative mass?

Answer 13

Number of protons + number of neutrons

Question 14

What is the average radius of an atom?

Answer 14

1 nanometer (nm)

Question 15

Where can you find the mass number of an element (relative to the symbol)?

Answer 15

On top (always the bigger number)

Question 16

Where can you find the atomic number of an element (relative to the symbol)?

Answer 16

On the bottom

Question 17

The radius of the nucleus is about _________ times smaller than the radius of the atom

Answer 17

10,000

Question 18

What is an isotope?

Answer 18

An atom of an element with the same number of protons but a different number of neutrons

Question 19

What is a nuclide?

Answer 19

It refers to a specific isotope that contains a certain number of protons and neutrons.