General Chemistry
Periodic Table
Chemical Equations
Chemical Equations 2
Miscellaneous Chemistry
100

Where the nucleus of an atom is located.

What is the center of the atom? 

100

The periodic table is organized by this aspect of an atom.

What is the atomic number of an atom?

100

Two or more atoms chemically combined. May be the same.

What is a molecule?

100

Two or more atoms of different elements chemically combined.

What is a compound?

100

The region surrounding the nucleus of an atom. It is actually mostly space.

What is the electron cloud?

200

The positively charged subatomic particle found in the center of the atom.

What is a proton?

200

What rows are called.

What is a period?

200

How you determine the number of elements in a formula.

What is count all the capital letters?

200

This number tells you how many atoms of an element are found in the formula.

What is a subscript?

200

The element that is brittle and does not conduct electricity is letter _____. 

What is letter A?

300

The subatomic particle which does not have any charge at all.

What is a neutron?

300

What columns are called.

What are families or groups?

300

A symbolic representation of a chemical reaction, like the process of photosynthesis, for example.

What is a chemical equation?

300

In a chemical equation, these are the materials that we start with.

What are reactants?

300

Rust on a bicycle is an example of this type of change.

What is a chemical change?

400

The mass of each of the subatomic particles found in the nucleus.

What is 1 atomic mass unit, or AMU?

400

The sum of protons plus neutrons

What is the atomic mass number (accept mass)

400

This number tells you how many molecules (or sometimes atoms) of a formula are in the equation. 

What is a coefficient?

400

The chemicals that result from a chemical reaction.

What are products?

400

Element letters C and D have luster and conduct electricity. They are ____________. 

What are metals?

500

The subatomic particle that is 1/2000 the size of the other subatomic particles.

What is the electron?

500

Elements in a period all share this same aspect of atomic structure.

What is the number of electron shells?

500

The large-sized number found in front of the N. 

What is the coefficient?

500

The small number found behind and below the element symbols.

What is a subscript?

500

Argon (Ar) and Magnesium (Mg) have the same number of ___________.

What are electron shells?

600

positive, negative and neutral

What are the charges on the subatomic particles?

600

Elements in a family/group all share the same number of these.

What are valence electrons?
600

When the number of atoms of all elements going into a rxn are the exact same as the number of atoms of those elements coming out.

What is balanced?

600

What goes in must come out (the same number of atoms).

What is the Law of Conservation of Mass?

600

Neon (Ne) and Krypton (Kr) have the same number of _______________.

What are valence electrons?

700
The name for the outer shell of an atom

What is the valence shell?

700

All elements in a column share this same characteristic.

What is reactivity?

700

The total number of oxygen atoms in the reactants.

What is 6?

700

The total number of atoms in the reactants. 

What is 13?

700

The most reactive element in the table is letter ____.

What is letter C?

800

Determines the reactivity of an element.

What is a valence electron?

800

All elements in a row have this property in common.

What is nothing?

800

This is how to determine whether a chemical equation is balanced or not.

What is counting the number of atoms of each element on each side?

800

This equation is ______________. 

What is unbalanced?

800

Element C is in the ______ period and the ______ group.

What is the 4th period and 1st group?

900

Subatomic particle that determines the identity of an atom.

What is a proton?
900

All element symbols start with this.

What is a capital letter?

900

The five signs of a chemical reaction.

What are GETPC (gas emitted, energy released, temperature change (unexpected), precipitate formed, color change (unexpected)?

900

These two equations have the same number of oxygen atoms.

What are equations 1 and 3?

900

This element has the greatest atomic mass of those shown.

What is element E?

1000
An atom whose numbers of protons and electrons are not the same.

What is an ion?

1000

The names for the top and the bottom numbers in this element square.

What are atomic number and atomic mass?

1000

The number of elements in carbon dioxide.

What is 2?
1000

The total number of grams of reactants if the outcome is 10 grams of water and 5 grams of carbon dioxide.

What is 15 grams?

1000

The two elements most likely to form a chemical bond together are ______ and ______. 

What are C and E?