Chemical Changes
Break this molecule down into atoms of each molecule:
CH4
1 Carbon
4 Hydrogen
The force of attraction between atoms or groups of atoms due to the sharing or transferring of electrons.
What is a Chemical Bond?
A chemical bond in which two atoms share one or more pairs of valence electrons.
What is a covalent bond?
The force of attraction between molecules of a different substance so that they tend to stick together.
What is Adhesion?
The charge an atom has if it loses an electron.
What is positive?
Break this molecule down into atoms of each molecule:
SF6
1 Sulfur
6 Flourine
An atom or a group of atoms that has a positive or negative charge.
What is an ion?
The bond that is formed when two atoms share two pairs of electrons.
What is a double bond?
A molecule that has slight positive and negative charges due to an imbalance in the way the electrons are shared.
What is a polar molecule?
The charge an atom has when it gains an electron.
What is negative?
Break this molecule down into atoms of each molecule:
Mg2SiO4
2 Magnesium
1 Silicon
4 Oxygen
When an atom has the same number of protons and electrons.
What is a neutral atom?
A bond that has unequally shared electrons.
What is a Polar Covalent Bond?
The force of attraction between molecules of the same substance so that they tend to stay together.
What is Cohesion?
Electrons that are on the highest energy level.
What is a valance electron?
A notation indicating the elements in a compound and the rates of the atoms of each element.
What is a chemical formula?
An atom with a positive charge.
What is a positive ion or cations?
The bond that occurs when two atoms share three pairs of electrons.
What is a triple bond?
Metals are good conductors of electricity because of these.
What are freely moving electrons?
This symbol is used to represent a negative charge.
What is the minus symbol?
Substance that undergoes a chemical change.
What is a reactant?
The chemical bond between oppositely charged ions.
What is an Ionic bond?
Having opposite charges within the same substance.
What is Polarity?
This is when cohesion pulls water molecules at the surface tightly together which forms a skin like boundary.
What is Surface Tension?
The force of attraction that keeps positive and negative ions together in a compound.
What is Ionic compounds?