Earth Chemistry: Atoms

Question 1

What is an atom?

Answer 1

smallest particle of an element but still contains characteristics of that element

Question 2

Atoms are made of _________ particles. These particles are _______, ________, and _________.

Answer 2

Subatomic
Protons
Neutrons
Electrons

Question 3

The nucleus is made of _______ and ________.

Answer 3

Protons

Neutrons

Question 4

_______ have positive charge
_______ have no charge
_______ have negative charge

Answer 4

Protons
Neutrons
Electrons

Question 5

Circling the _______, which contains the protons and neutrons, are the __________.

Answer 5

Nucleus

Electrons

Question 6

A water molecule contains 2 ________ atoms and 1 _______ atom. It is written as ___

Answer 6

Hydrogen
Oxygen
H2O

Question 7

An atom becomes an ion when it _________________________

Answer 7

Gives up or gains an electron

Question 8

There are over __ kinds of atoms. Each one is called an _______.

Answer 8

90

Element

Question 9

The number of protons in the nucleus is an elements ______ _______.

Answer 9

Atomic

Number

Question 10

______ ____ is the mass of the protons and neutrons

Answer 10

Atomic

Mass