Chemistry Chapter 4 Review

What man was the first to suggest idea of Atoms?

• Dalton

• Thompson

• Democritus

• Ludacris

What is the smallest particle of an element that retains the properties of that element?

• atom

• proton

• neutron

• electron

Dalton hypothesized that atoms are indivisible and that all atoms of an element are identical. He was incorrect because...

• Atoms are different

• Atoms move

• Atoms can be divided into subatomic particles

• Atoms are unstable

Which two subatomic particles have a mass nearly equal to each other?

• Protons and Neutrons

• Protons and Electrons

• Electrons and Neutrons

• Atoms and Protons

The charge of an atom is zero when the number of _____ and _____ are the same.

• Protons and Neutrons

• Protons and Electrons

• Protons and Atoms

• Electrons and Neutrons

Which subatomic particles are in the nucleus?

• Protons and Neutrons

• Protons and Electrons

• Atoms and Electrons

• Neutrons and Electrons

Which scientist found that electrons distributed around the nucleus and occupy most almost all of the volume of the atom?

• Dalton

• Thompson

• Democritius

• Rutherford

Where is the nucleus?

• the outer part of an atom

• left side

• right side

• it is the central core

The atomic number of an element equals the same number of what subatomic particle in the nucleus?

• Neutrons

• Protons

• Electrons

• Popcorn

If an element has an atomic number of 8. How many protons will the element have?

• 8

• 9

• 10

• 11