1st Semester Chemistry - Atoms

Which atomic particle has a positive charge?

• Proton
• Neutron
• Electron

Which subatomic particle is negatively charged?

• proton
• atom
• neutron
• electron

Which subatomic particle has a neutral charge?

• Proton
• Neutron
• Electron

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

All atoms of the same element have the same

• number of neutrons 
• number of protons
• mass number
• mass

The sum of the protons and neutrons in an atom equals the

• atomic number
• nuclear number
• average atomic mass
• mass number

Isotopes of the same element have different

• number of neutrons 
• number of protons
• number of electrons
• atomic number 

Tags

NGSS.HS-PS1-8

How many protons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?

• 20
• 10
• 2
• 18

How many neutrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?

• 20
• 25
• 2
• 18

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

• 34
• 36
• 2
• 40