Atoms and Molecules and Elements...OH MY!!!

Au is the symbol on the periodic table that stands for what element?

• Silver
• Iron
• Gold
• Magnesuim

What are the two most abundant elements in the universe?

• Hydrogen and Oxygen
• Hydrogen and Helium
• Helium and Nitrogen
• Nitrogen and Surprise

Pb is the symbol for what element?

• Lead
• Iron
• Peanut Butter
• Plutonium

Two or more elements that are chemically combined are called_____________.

• Hydrogen
• Molecules
• Carbon dioxide
• Compounds

Sn is the chemical symbol on the periodic table of elements for the element

• Lead
• Iron
• Silicon
• Tin

Unexpected change in temperature; unexpected change in color; production of gas/bubbling; production of odor; production of sound; production of light, these are all ________________________.

• Signs of a physical change
• Signs of a chemical change
• Signs of indigestion
• Sings you have entered Willy Wonka's Chocolate Factory

The name for all the electrons orbiting the nucleus in an atom--takes up the most space in the atom, if the nucleus was the size of a bunch of grapes the ______________  _______________ would take up the space of a football stadium.

• Rain cloud
• Storm cloud
• Electron cloud
• Cirrus cloud

What is the name for the path that one object takes as it circles around another object. ex. a satellite circling the earth or electrons circling the nucleus of an atom?

• Orbit
• Molecules
• Atomic Number
• Nucleus

K is the chemical symbol on the periodic table of elements for the element

• Uranium
• Hydrogen
• Iodine
• Potassium

True or False:
The chemical formula CO2 represents the elements carbon and oxygen joined together in a compound with a total of 3 atoms in the compound.

• True
• False