Intro to Science

What is an element?

• Two or more atoms joined together.

• One type of atoms

• Two or more different elements joined together.

• A particle with no charge found in the nucleus of an atom

What is a molecule?

• two elements bonded together

• a mixture of different substances

• smallest individual particles

• salt mixed in water

What is a compound?

• Two or more different elements bonded together.

• Two of the same elements bonded together.

• A mixture of different substances.

• Two substances stuck together with glue

What two subatomic particles are found in the nucleus?

• proton and electron

• electron and neutron

• neutron and proton

• neutron and electron

What is the proton?

• a negatively charged particle that orbits the nucleus

• a neutral particle found in the nucleus

• a positively charged particle found in the nucleus

• a neutral particle that orbits the nucleus

What is the electron?

• a negatively charged particle that orbits the nucleus

• a neutral particle found in the nucleus

• a positively charged particle found in the nucleus

• a neutral particle that orbits the nucleus

What is the chemical symbol of the element Hydrogen?

• Hy

• H

• Hydro

• Hg

Which of the following is a chemical formula?

• H₂SO₄

• Si

• Hg

• C

What is the picture displayed?

• Atom

• Element

• Molecule

• Compound

What do we call a chemical substance made up of 2 or more different types atoms bonded together?

• formula

• atom

• subscript

• compound