The atomic number tells us how many _________ are in the nucleus.
protons
100
The atoms in the periodic table are put in order using this number.
Atomic number.
100
What is a chemical property of water?
It doesn't burn.
100
Which awesome metal is a liquid at room temp?
Mercury
100
Most of your body is made of oxygen, nitrogen, hydrogen and.......
CARBON!
200
The atomic number tells us how many __________ are spinning around the nucleus.
Electrons
200
Atoms in a periodic column share this.
chemical properties
200
Name a chemical property of iron.
It can rust.
200
Why is metal good for electronics?
Metals are good conductors.
200
When two or more atoms combine, they make these.
Molecules or Compounds
300
Helium has an atomic number of 2. How many protons does it have?
2
300
The elements in the last column of the periodic table are called noble ______.
gases
300
Which one is true?
Carbon Dioxide is sweet.
Carbon Dioxide doesn't burn.
Carbon Dioxide is a solid at room temp.
Carbon Dioxide listens to Rock and Roll.
Carbon Dioxide doesn't burn.
300
Which one is an alloy?
silver
copper
nickel
brass
Brass
300
60% of your body is made of ________. Also, is it a molecule or a compound?
Think carefully... it could be a trick question.
(Hint: It IS a trick question)
Water. It's both a compound and a molecule.
400
Oxygen has an atomic number of 8. How many electrons does it have?
8
400
The letters found on the periodic table are called...
chemical symbols
400
Noble gases usually don't _______ with other elements.
combine.
400
What is an alloy?
A metal that has been mixed with at least one other element.
400
In sea water. Gross salty sea water. What is the solute? What is the solvent?
Solute = salt, solvent = water.
500
Calcium has an atomic number of 20. What is the sum of the atom's protons + electrons?
40
500
Name 4 things you can find out using the Periodic table.
Names, atomic numbers, numbers of protons, numbers of electrons, metals, metalloids, non-metals.
500
Name a property that a non-metal might have.
Brittle, gas, breaks easily.
500
FREE POINTS!!!!!
CONGRATULATIONS ON NOT HAVING TO KNOW ANYTHING FOR THESE POINTS!!!!!!
500
What is the difference between a molecule and a compound?
A molecule is two or more atoms joined together. A compound is two or more kinds of elements joined together.