Atomic Structure

Question 1

What is an atom?

Answer 1

The simplest particle of an element that an exist on its own in a stable environment

Question 2

What is the relative mass of a proton

Answer 2

1

Question 3

What is the relative mass of a neutron?

Answer 3

1

Question 4

What is the relative mass of a electron ?

Answer 4

1/1840

Question 5

What is the relative charge of a proton?

Answer 5

1+

Question 6

What is the relative charge of a neutron?

Answer 6

0

Question 7

What is the relative charge of an electron?

Answer 7

1-

Question 8

Where is a proton located?

Answer 8

Nucleus

Question 9

Where are neutrons located?

Answer 9

Nucleus

Question 10

Where are electrons located?

Answer 10

Shells

Question 11

What does the atomic number of an element represent?

Answer 11

The number of protons

Question 12

What does the mass number of an element represent?

Answer 12

The number of protons and neutrons

Question 13

What is an isotope?

Answer 13

Atoms of the same element, in the same state but different mass number (number of neutrons).

Question 14

What is the equation for relative atomic mass?

Answer 14

Σ(mass number X abundance)
——————————————
Σ abundance

Question 15

What’s compound?

Answer 15

Substance formed when two or more elements are chemically combined.

Question 16

What is an ion?

Answer 16

A charged particle

Question 17

What is the charge of a cation?

Answer 17

Positive

Question 18

What is the charge of an anion?

Answer 18

Negative

Question 19

What is the charge of an atom?

Answer 19

They have no electronic charge