8.5A Atomic Structure Subatomic Particles #1

These determine the reactivity of an element...

• Valence electrons
• Valence Protons
• Valence Neutrons
• Valence Quark

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

Which subatomic particle has a negative (-) charge?

• Proton
• Electron
• Neutron

Which subatomic particle has a neutral or no charge?

• Proton
• Electron
• Neutron

Where is the nucleus located in an atom?

• Near the electron shells/levels
• Near the center of an atom

In this picture, the Electrons are found in which color?

• Blue
• Red
• Green

What is the mass number?

• the number of protons in the nucleus

• the number of protons and neutrons in the nucleus

• the number of neutrons in the nucleus

• the number of protons and electrons in the atom

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons

Which subatomic particles contribute the most to the mass of an atom?

• Protons, Neutrons, Electrons
• Protons only
• Protons and Electrons
• Protons and Neutrons

Where are protons located?

• in the nucleus

• near the nucleus

• orbiting the nucleus

• can't be determined