Atoms
Elements
Molecules
Compounds
Mystery
100
Atoms are composed of these 3 subatomic particles?
What are protons, neutrons, and electrons?
100
What is an element? Give an example.
A pure substance that cannot be broken into simpler substances. Atoms with the same atomic number - Same number of protons.
100
Two hydrogen atoms and one oxygen atom make up one molecule of this.
What is one molecule of water?
100
The definition of a compound.
Made up of or consisting of two or more elements or atoms.
100
Give an example of a mixture.
Salt water - salt, water
Air - nitrogen(78%), oxygen(21%), argon(0.9%)
Blood - cells, plasma, platelets
Soil - minerals, air, water, organic matter
200
Particle with a neutral charge in an atom.
What is a neutron?
200
Ne is the chemical symbol for this element.
What is Neon?
200
The number of sodium atoms in table salt.
What is 1 sodium atom?
200
Which of the following is not a compound?
HCl
Cl2
NaCl
CO2
200
What kind of model are these
?
Space Filling Model
300
Center of the atom that makes up most of the atom's mass.
What is the nucleus?
300
Chart used by scientist to list all the elements.
What is the periodic table?
300
What is a pure substance?
A molecule made of only one type of atom.
Example - O2 , H3
300
The 2 in the chemical formula H2O means this.
What are two atoms of hydrogen?
300
What type of model are these?
Ball and Stick
400
Particles located in the nucleus of an atom.
What is protons and neutrons?
400
The atomic number of helium is this
What is two?
400
The definition of a molecule.
What is a particle that contains more than one atom joined together?
400
How many of these are models of compounds?
6
400
If an atom were the size of a football field, how big would the nucleus be?
The size of a marble
500
The place where you would find electrons in an atom.
Electron Cloud
500
How many known elements are on the periodic table?
118
500
Which is an example of a molecule?
B is a pure element/molecule
or
C is a compound molecule
500
The chemical formula for table salt.
What is NaCl?
500
Name the atoms and how many there are in this compound of sugar.
C6H12O6
6 carbon
12 Hydrogen
6 Oxygen