Atomic Stucture and Periodic Structure

Question 1

What is the Nucleus?

Answer 1

The middle of the atom

Question 2

What are the subatomic particles?

Answer 2

Protons,Neutrons and Electrons

Question 3

What is the mass of a Proton?

Answer 3

1

Question 4

What is the mass of a Neutron?

Answer 4

1

Question 5

What is the mass of an Electron?

Answer 5

very small

Question 6

What is the charge of a Proton?

Answer 6

1

Question 7

What is the charge of a Neutron?

Answer 7

0

Question 8

What is the charge of an Electron?

Answer 8

-1

Question 9

What is an Atom?

Answer 9

smallest piece of an element that can exist

Question 10

What is a Compound?

Answer 10

a compound is two or more element chemically bonded together

Question 11

What is an Element?

Answer 11

a group of the same atoms which are chemically bonded together

Question 12

What is a molecule?

Answer 12

A molecule is a group of two or more atoms joined together by covalent bonds

Question 13

Where is the mass number represented on atoms?

Answer 13

The top number next to the element

Question 14

Where is the atomic number represented on atoms?

Answer 14

The bottom number next to the element

Question 15

What is an isotope?

Answer 15

Atoms of the same element having a different number of neutrons

Question 16

How do you find the mass number?

Answer 16

Add protons and neutrons

Question 17

Recall the formula of relative atomic mass

Answer 17

Relative atomic mass= (mass number of isotope 1 x percent abundance of isotope 1) + (mass number of isotope 2 x percent abundance of isotope 2) /100

Question 18

What is relative atomic mass?

Answer 18

The average of the mass numbers of the different isotopes. It takes account of the abundance of the isotopes of the element.