Atom Basics

Atomic number tells you _________.

• the number of protons in an atom

• the number of electrons in an atom

• the number of neutrons in an atom

• the atomic mass of an atom

Metals are found on the ____ side of a periodic table and nonmetals are found on the ___ side.

• left, right

• right, left

Atomic number tells you _________.

• the number of protons in an atom

• the number of electrons in an atom

• the number of neutrons in an atom

• the atomic mass of an atom

Which element has an atomic number of 12?

• Magnesium

• Carbon

• Sodium

• Scandium

Which element has an atomic mass of 10.81?

• Boron

• Carbon

• Neon

• Sodium

Atomic mass is the number of ______ + _______.

• protons, neutrons

• neutrons, electrons

• protons, electrons

Which of the following elements is in PERIOD 2?

• Beryllium

• Hydrogen

• Helium

• Aluminum

Which element has the symbol "P"?

• potassium

• lead

• plutonium

• phosphorus

Find oxygen on the periodic table ("O"). Which of the following elements would oxygen be MOST like (in terms of shared properties)?

• sulfur (S)

• nitrogen (N)

• fluorine (F)

• neon (Ne)

Which family of elements does NOT want to bond to or react with other elements?

• Alkali Metals

• Noble Gases

• Halogens

• Alkaline Earth Metals