Midterm Review #2 (Atomic Theory and Atom Structure)

The part of the atom that is negatively charged

• proton

• electron

• quasar

• neutron

What is the charge on a neutron

• +1

• 0

• -1

What is the symbol fro a proton

• p⁺

• n^o

• q^--

• e^-

Adding heat to matter makes the particles of matter move slower.

• false

• true

• maybe

In which phase of matter do particles have energy enough to fly randomly around the room?

• solid

• liquid

• gas

A scientific statement that does not change. It always happens is called a

• theory

• rule

• law

• principle

Who is responsible for the atomic theory we use today

• Democritus

• Dalton

• Bohr

• Schrodinger

The law of conservation of mass states that

• In a reaction sometimes the reactants are heavier and sometimes the products are heavier.

• you have the same number of each atom on both sides of the equation.

• When a reaction happens the products are always heavier than the reactants

• When a reaction happens the reactants are always heavier than the products

This particle is found in the nucleus and has no charge

• Neutron
• Proton
• Electron

This is a negatively charged particle found outside the nucleus

• Electron
• Proton
• Neutron