atoms

The number of protons in the nucleus of an atom is called the --

• atom

• proton

• atomic mass number

• atomic number

A subatomic particle that has a negative charge is called --

• a proton

• a neutron

• an electron

• the nucleus

A neutron is ---

• a subatomic particle with a negative charge.

• a subatomic particle with a neutral charge.

• the center of the atom where subatomic particles are found.

• a subatomic particle with a positive charge.

An arrangement of elements in order of their atomic numbers such that elements with similar properties fall in the same column or group.

• Atomic Number

• Electron Cloud

• Periodic Table

• Nucleus

A subatomic particle with a positive charge is called --

• a proton

• a neutron

• an electron

• a nucleus

The smallest unit of an element that maintains the properties of that element is known as--

• a proton

• a neutron

• an element

• an atom

An atom's central region, which is made up of protons and neutrons is called--

• Electron Cloud

• Nucleolus

• Nucleus

• Atomic Number

Which subatomic particle(s) are found in the nucleus of the atom? Choose all that apply.

• proton

• neutron

• electron

Which subatomic particle(s) are found in the electron cloud of an atom? Choose all that apply.

• proton

• neutron

• electron

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds