Elements Review

Which is NOT true of Elements? (Which is false?)

• Elements cannot be broken down

• Elements are chemically combined

• Elements are represented by a chemical symbol,

• Elements are made up of one kind of atom

The symbol for Carbon is:

• Co

• Cl

• C

• CA

The atomic number stands for the:

• Number of protons in the atom

• Number of protons AND neutrons together

• Number of “things” in the nucleus

• Number of neutrons in the atom

Tags

NGSS.MS-PS1-1

What two elements are in water (H2O)? Circle two (2)

• Oxygen

• Neon

• Helium

• Hydrogen

Tags

NGSS.MS-PS1-1

Which example is ONLY an Element?

• $CO_2$

• Co

• OH

What is the chemical symbol for Helium?

• H

• Hel

• HEL

• He

What element's symbol is N?

• Neon

• Neptunium

• Nitrogen

• Nickel

What is the chemical symbol for Potassium?

• K

• Ph

• P

• Na

What element has the chemical symbol Li?

• Lutetium

• Mercury

• Lithium

• Magnesium

Hydrogen is the most abundant element in the universe. Its symbol is:

• Hy

• He

• h

• H