Unit 2 - Chemistry I - CCA # 1 Review

What is the smallest particle of an element; made of electrons, protons, and neutrons?

• Atom

• Compound

• Atomic Number

• Proton

What is the electrical charge of a neutron?

• Neutral

• Positive

• Negative

• Double

The _ is equal to the number of protons of one atom of an element?

• Neutron

• Atomic Number

• Atomic Mass

• Chemical equation

What subatomic particle is responsible for the identity of the atom?

• Electron

• Nucleus

• Proton

• Neutron

An atom of Boron must have _

• 5 Protons

• 6 Neutrons

• 5 Electrons

• 5 Protons and 5 Electrons

The ___ is responsible for the reactivity of the atom?

• Proton

• Valence Electrons

• Neutrons

• Atomic Mass

When an atom's outer most shell is complete it will be ___

• Stable / Non-reactive

• Very Reactive

• Slightly Reactive

• Alkaline Metal

Elements in the same Group / Family have ___

• Similar Chemical properties

• The same number of Valence Electrons

• The same number of Orbitals and Valence Electrons

• Similar Chemical properties and the same number of Valenece Electrons

What is the formula for Density?

• Mass / Volume

• Mass X Volume

• Mass / Volume³

• Volume / Mass

The subatomic particle found inside the nucleus of the atom and has no electrical charge is a ___?

• Proton

• Neutron

• Electron

• Nucleus