SwitchedOn Education: Unit 1 Assignment 2 Revision Quiz

_ is known as the smallest particle of matter still retaining the characteristics of the element

• Electron

• Molecule

• Cell

• Atom

What describes the number of protons in an atom?

• Atomic mass

• Atomic symbol

• Atomic number

• Atomic proton

_ are tiny negatively charged particles circling the nucleus of an atom.

What is another name for matter that is made from one type of atom?

• Element

• Molecule

• Substance

• Ion

_ are neutrally charged particles in the nucleus of an atom.

What is the name for the center of an atom, which is made up of protons and neutrons?

• Atomic center

• Ion

• Nucleus

• Neutron

_ are positively charged particles in the nucleus of an atom.

• Neutron

• Electron

• Proton

• Electron cloud

Which word is NOT a natural state of matter?

• Liquid

• Solid

• Gas

• Plasma

• Ions

Select TWO components that positively or negatively affect the four phases of matter:

• Volume

• Temperature

• Pressure

• Viscosity

True or False: "Anywhere on the Earth's surface where a substance is subject to normal atmospheric pressure, the phase is determined ONLY by temperature".

• True

• False