Atom and Elements

The smallest unit of matter is

• molecule

• covalent bond

• atom

• electron

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

The three main subatomic particles that make up an an atom are

• neutron, protons, molecules

• neutron, protons, ions

• ions, electrons, newtons

• electrons, neutrons, protons

The number of protons in an atom is known as its atomic

• number

• mass

• phase

• bond

Tags

NGSS.MS-PS1-1

When two or more elements are combined, the substance produced is a

• suspension

• transitional metal

• compound

• noble gas

Tags

NGSS.MS-PS1-1

What is the identity of an element. It tells you how much proton the atoms of that element contain?

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Element Name

What is the weighted average mass of all isotopes of the element?

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Element Name

What is the one or two letter symbol that represents the element?

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Element Name

What is named using Latin and Greek words roots based on their properties, after heavenly bodies, after Gods, after places, and after scientist?

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Element Name

How many protons are in Palladium?

• 106

• 46

• 60

• 106.42

How many neutrons are in Caesium?

• 55

• 132

• 78

• 133