u4

Question 1

THe number of protons in the nucleus

Answer 1

Atomic number

Question 2

A group of different that are bonded

Answer 2

compound

Question 3

A group of atoms that are bonded

Answer 3

Molecule

Question 4

Pattern of repeating properties in elements when they are arranged in a specific order

Answer 4

periodicity

Question 5

An attraction between two or more atoms

Answer 5

bond

Question 6

A way to organize electrons into different levels surrounding the nucleus of an atom. Each shell holds a specific number of electrons

Answer 6

electron shell

Question 7

The electrons in the outermost electron shell. These electrons form connections with other atoms

Answer 7

valance electrons

Question 8

The distance from the nucules to the outershell of the atom

Answer 8

Atomic radius

Question 9

A Symbol used to represent the shift of electron density in a molecule….

Answer 9

dipole arrow

Question 10

A covalent bond in which the bonding electrons are shared equally between the two atoms

Answer 10

Nonpolar covalent bond

Question 10

A measure of how strongly a nucleus is attracted to shared electrons

Answer 10

electronegativity

Question 11

The results of the attraction of two oppositely charged ions

Answer 11

Ionic bond

Question 12

A covalent bond formed by atoms that share two pairs of electrons

Answer 12

double bond

Question 12

A covalent bond in which the atoms have an unequal attraction for electrons, And so the sharing is equal

Answer 12

Polar covalent bond

Question 13

A covalent bond formed by atoms that share 3 pairs of electrons

Answer 13

triple bond

Question 14

The attraction of the stationary metal cations to the surrounding mobile electrons

Answer 14

Metallic bond

Question 15

Solid product that formed from a reaction and settles out of a liquid mixture.

Answer 15

Intermolecular forces

Question 16

attractive forces that occur between molecules

Answer 16

precipitate

Question 17

A group of atoms acting together as a single ion(charged atom)) when bonded to other atoms.

Answer 17

polyatomic ion

Question 17

Same number of atoms in a reaction because it cannot be created nor destroyed

Answer 17

Law of conservation of matter

Question 18

A number added to the front of a chemical formula to balance out equations

Answer 18

Coefficient

Question 18

A reaction in which a compound breaks down into two or more simpler substances

Answer 18

Decomposition

Question 19

How easily a substance reacts chemically with other substances

Answer 19

Reactivity

Question 20

A chemically equation that includes multiplayer coefficients to represent that the amounts and types of atoms on the reactants side are equal to those on the products side

Answer 20

Balanced chemical equation

Question 21

A bond or short sequence of bonds that links one polymer chain to another

Answer 21

Cross link

Question 22

A small unit of repeating chain OR a subunit of a polymer

Answer 22

Monomer

Question 23

A plastic that softens or melts when heated and then can be molded into different shapes

Answer 23

Thermoplastic

Question 23

A long chain of repeating monomers OR a component strand of plastics OR a molecule with thousands of repeated subunits

Answer 23

polymer

Question 24

A plastic with cross-links between polymer chains; will undergo a chemical change when overheated

Answer 24

thermoset