Subatomic Particles

What particle provided the positive charge for an atom?

• proton 
• neutron
• electron
• nucleus

The smallest particle of an element is known as the

• Periodic Table

• Atom

• Group

• Period

Each neutron has a _________________ charge.

• positive

• negative

• neutral

• shocking

What subatomic particles would you find in the nucleus of an atom?

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

What particle of the atom uniquely identifies/determines an element?

• Number of Valence Electrons

• Number of Protons

• Number of Electrons

• Atomic Mass

Which statement explains why most of the mass of an atom is contained in the relatively small nucleus?

• Atoms are composed of less dense sub-units than the nucleus

• The nucleus is located at the center of an atom

• Protons and neutrons have more mass than electrons

• Atoms are composed of mostly empty space

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

• a proton

• a neutron

• an electron

• the nucleus

When an atom has the same number of protons and electrons, the atom is __________?

• neutron

• neutral

• newton

• nutella

Which statement best describes the nucleus of an atom?

• It is a centrally located structure comprising almost all of the atomic mass and having an overall neutral charge

• It is a centrally located structure comprising almost none of the atomic mass and having an overall positive charge

• It is located in the electron cloud, comprises almost all of the atomic mass, and has a positive charge

• It is a centrally located structure comprising almost all of the atomic mass and having an overall positive charge

Am element has 27 protons, 27 electrons, and 32 neutrons. Calculate the atomic mass of this element.

• 59

• 54

• 86

• 32