Atoms, Molecules, Elements, and Compounds 5.4 c,d

What determines whether matter is a solid, liquid or gas?

• Number of electrons
• Number of neutrons
• Speed of atoms or molecules
• Number of elements

All matter is made of

• iron
• atoms
• mixtures
• gold

Hydrogen, oxygen, and helium are examples of

• protons
• neutrons
• electrons
• elements

What is the smallest part of matter?

• An atom
• a circuit
• a switch
• a voltage

The carbon dioxide compound is made of

• 2 oxygens and 1 hydrogen
• 2 oxygens and 1 carbon
• 2 hydrogens and 1 oxygen
• 2 carbons and 1 oxygen

The smallest part of a compound that has all of the same properties of that compound is a

• atom
• mixture
• molecule
• element

When one molecule of sodium combines with one molecule of chlorine, what is formed?

• SC
• S₂Cl₂
• NaCl
• NaCl₂

What compound is formed when the elements Na (sodium) and Cl (Chloride) are combined?

• Carbon Dioxide
• Water
• Gold
• Table Salt

What is formed when two or more elements join together?

• neutron
• proton
• compound
• mixture

Atom is to molecule as element is to

• temperature
• mass
• solution
• compound