Unit 1 Mega-Bowl

The smallest particle of an element that maintains the properties of that element-

• atom

• subatomic particle

• electron

• neutron

The atomic mass is the average mass number of all atoms of an element (from particles in the nucleus). true or false?

• True

• False

The number of protons in the nucleus of an atom; used to determine an element's position in the Periodic Table-

• atomic mass

• average number

• atomic number

• element symbol

The _______ property is the characteristic of a substance that describes how it combines with other substances to form new ones.

The property of a subatomic particle; positive (protons), negative (electrons), or neutral (neutrons)-

• Physical element

• chemical property

• physical property

• electrical charge

The _______ is a negatively charged particle in the electron cloud surrounding the atomic nucleus

• proton

• neutron

• atom

• electron

The _________ is the negatively charged space containing electrons that surrounds the atomic nucleus

• Electron Cloud

• Bohr Model

• Electron wave

• particle prism

An ______ is a pure substance that cannot be broken down chemically into simpler substances.

• compound

• element

• atom

• proton

The vertical columns on the Periodic Table:

• Groups

• Periods

The ______ _______ tells the total number of protons and neutrons in a specific atom.

• electron

• atomic number

• atomic mass

• element symbol