Vocabulary

Question 1

A science that studies the matter and the changes that it undergoes.

Answer 1

chemistry

Question 2

anything that has mass and takes up space

Answer 2

matter

Question 3

is the ability to do work or produce heat

Answer 3

Energy

Question 4

Pure substance

Answer 4

A single kind of matter with a specific composition and properties

Question 5

Mixture

Answer 5

Physical combination of 2 or more substances p, in which they retain their distinct

Question 6

physical change

Answer 6

Is when matter is the same, the original matter can be recovered, and the particles of the substances are rearranged

Question 7

chemical change

Answer 7

is when the matter is different the old matter is no longer present and cannot be reverted, particles.

Question 8

Are particles much smaller than atoms

Answer 8

subatomic particles

Question 9

Isotopes

Answer 9

Atom of the same element with different number of neutrons and there for a differ in mass

Question 10

quantum numbers

Answer 10

Information that indicates the location of the electrons

Question 11

Electronic confirmation

Answer 11

Form of notation in which shows how the electrons are distributed among the atomic orbitals and energy levels

Question 12

diagram orbitals

Answer 12

notations used to show how the orbitals of a sub shell are occupied by electrons

Question 13

aufbau’s principle

Answer 13

established that new electron added to an atom, will enter in the available orbital , with less energy.

Question 14

hund’s rule

Answer 14

one electron will enter each orbital with a parallel pin until all orbitals have one electron and only then will a second electron be added to those orbitals

Question 15

paulli’s rule

Answer 15

Electrons in the same atom cannot have the same four quantum numbers (they must have opposite spins)

Question 16

Atomic radius

Answer 16

The radius of an atom, the distance form the atomic nucleons to the auteur most stable electron orbital

Question 17

the amount of energy it takes for all the atoms in a mole to lose one electron each.

Answer 17

Ionization energy

Question 18

electron affinity

Answer 18

The change in energy of a neutral atom

Question 19

Chemical bond

Answer 19

Is the force that holds 2 atoms together, it is formed by ions, atoms that have positive or chemical charge

Question 20

Octet rule

Answer 20

atoms tend to gain, lose, or share electrons in order to acquire eight valance electrons

Question 21

Ionic and covalent bond

Answer 21

fore that holds ions together with opposite charges

Question 22

is present between no metallic atoms that share electrons between them

Answer 22

Covalent bond

Question 23

is a partially electrostatic attraction between a hydrogen with is bound to a more electronegative atom such as nitrogen, oxygen, or fluorine

Answer 23

hydrogen bond

Question 24

magnetism

Answer 24

Is by the use of density

Question 25

Separation

Answer 25

Use of density

Question 26

Distillation

Answer 26

First heating the mixture then by condensation

Question 27

homogenous

Answer 27

lemonade tequila

Question 28

Heterogeneous

Answer 28

Sandwich hamburger

Question 29

states of matter

Answer 29

Solid Liquid Gas Plasma

Question 30

Atomic model evolution

Answer 30

Dalton-> Thomson-> Rutherford-> Chadwick-> Bohr-> Sommertield-> Schorodinger-Heisenberg

Question 31

Good conductors / Moleable / Ductible / Metallic Luster

Answer 31

Metals

Question 32

Non Metals

Answer 32

Poor conductors / Low densities / Low melting points

Question 33

Similar properties / Semi-conductors / Solid may have luster

Answer 33

Metalloids