Structure of an atom

Question 1

Where are the electons in an atom located?

Answer 1

In the shells

Question 2

Where are the protons in an atom located?

Answer 2

The nucleus

Question 3

Where are the nuetrons in an atom located?

Answer 3

the nucleus

Question 4

What is a proton’s relative charge?

Answer 4

+1

(You can remember it by the pro in proton which means positive)

Question 5

What is a neutron’s relative charge?

Answer 5

0

(You can remember it by neutron and neutral)

Question 6

What is an electron’s relative charge?

Answer 6

-1

Question 7

What is a proton’s relative mass?

Answer 7

1

Question 8

What is a electron’s relative mass?

Answer 8

1/1835

(nearly nothing)

Question 9

What is a neutron’s relative mass?

Answer 9

1

Question 10

What is the mass number equal to?

Answer 10

protons +neutrons in the atom

Question 11

What is the atomic number equal to?

Answer 11

the number of protons = the number of electrons

Question 12

What is an isotope?

Answer 12

Isotops of an element have the same atomic number but a different relative mass/mass number

They have the same number of protons but a different number of electrons

Question 13

What does an A with a mini r next to it mean?

Answer 13

relative atomic mass

Question 14

What is the first step to calculate relative atomic mass?

Answer 14

You figure out how abundant each isotope of the element is

Question 15

What is the second step to calculate relative atomic mass?

Answer 15

You assume you have 100 atoms

Question 16

What is the third step to calculate relative atomic mass?

Answer 16

((AxI)+(A2xI2))/100=ans

using A as abundance and I as isotope.

Question 17

What is the fourth step to calculate relative atomic mass?

Answer 17

You simplify your answer