Study Guide PS Review Unit 2 PART 1

The chart that shows the arrangement of elements in order by their atomic number

• Electron Cloud
• Periodic Table
• amu
• Atomic Mass

The sum of the protons and neutrons in the nucleus of an atom

• Atomic Number
• Compound
• Electrons
• Mass Number (also called Atomic Mass)

The vertical columns on the periodic table #1-18

• Groups
• Periods
• Subatomic Particles
• Rows

The majority of elements are classified as ________ and are located on the left side/middle of the periodic table.

• Metals
• Noble Gases
• Nonmetals
• Metalloids

A "pure" substance that cannot be separated or broken down into simpler substances

• Compound
• Mixture
• Period
• Element

A substance composed of two or more elements chemically bonded together.  Examples are H₂O and CO₂.

• Element
• Compound
• Electron Cloud
• Metalloid

Tags

NGSS.MS-PS1-1

The horizontal rows on the periodic table #1-7.

• Periods
• Element
• Atomic Number
• Group

What is the smallest unit of matter called

• elements

• atoms

• compounds

• cells

What is the atomic mass of Neon?

• 10

• 20.18

• 10.18

• 40.36

How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1