Atoms

How many different particles are found in an atom?

• 5

• 4

• 3

• 2

Which particles orbit around the nucleus?

• Neutrons

• Electrons

• Gases

• Protons

How are atoms of different elements alike?

• They are all made of protons, neutrons, and electrons

• They have the same number of atoms

• Same number of electrons

• same number of protons

What makes an atom neutral?

• Add more protons

• Have the same number of protons and electrons

• Different number of protons and electrons

• Add more neutrons

What are chemical symbols?

• A one-two letter abbreviation of an element

• A random letter

• A certain letter that represents the number of atoms

• A letter random letter that represents the number of neutrons there are in an atom

What are compounds made of?

• Two or more elements chemically combined

• nucleus and protons

• Atoms of the same element

• Neutrons, protons, and electrons

How are compounds held together?

• Bonds between electrons

• Bonds between protons

• Bonds between gases

• Bonds between neutrons

What are reactants?

• A substance that undergoes a change

• A rock that turns into water

• An element combined with another element

• A combination of two molocules

What are products?

• An answer to a multiplication problem

• The result of a reaction

• The result of your grade

What is a chemical formula?

• The number of atoms and symbols in a compound

• Two compounds combined

• three molocules combined

• Two molocules combined