Atomic Structure

Question 1

In an atom the number of protons always equals what?

Answer 1

Number of electrons

Question 2

What is the atomic mass/ mass number?

Answer 2

Number of protons + neutrons

Question 3

What is atomic number?

Answer 3

Number of protons

Question 4

What is an element?

Answer 4

A specific type of atom

Question 5

What is a compound?

Answer 5

A substance made from 2 or more atoms chemically bonded together

Question 6

What is the Periodic Table?

Answer 6

A table containing the known elements arranged according to similar properties

Question 7

What is a group on the Periodic Table?

Answer 7

The name for the columns, tells us how many electrons are in the outer shell of an atom

Question 8

What is a period on the Periodic Table?

Answer 8

The name for the rows

Question 9

What is an atom?

Answer 9

The smallest piece of chemical matter, everything is made up of these

Question 10

What is the position of a proton in an atom?

Answer 10

In the nucleus

Question 11

What is the position of a neutron in an atom?

Answer 11

In the nucleus

Question 12

What is the position of an electron in an atom?

Answer 12

In the outer shell(s)

Question 13

What is the relative mass of a proton?

Answer 13

1

Question 14

What is the relative mass of an electron?

Answer 14

Very small

Question 15

What is the relative mass of a neutron?

Answer 15

1

Question 16

What is the relative charge of a proton?

Answer 16

+1

Question 17

What is the relative charge of an electron?

Answer 17

-1

Question 18

What is the relative charge of a neutron?

Answer 18

0 (neutral)

Question 19

Why are atoms electrically neutral?

Answer 19

The number of protons and electrons are equal