atoms and the periodic table. Johnathan

Question 0

What are protons?

Answer 0

Subatomic particle that has a positive charge. Also it’s found nucleus of an atom.

Question 1

What is a nucleus?

Answer 1

A central region of a atom and it’s made up of protons and neutrons.

Question 2

What are neutrons?

Answer 2

Has no charge and is found in the nucleus of an atom.

Question 3

What are electrons?

Answer 3

Has negative charge and also is a subatomic particle.

Question 4

What is orbital?

Answer 4

In a atom there is a high probability of finding electrons.

Question 5

What is valence electron?

Answer 5

Electron founded in the outside shell of an atoms. It also determines the atoms chemical properties.

Question 6

What is a periodic law?

Answer 6

Electron found in the outer shell and determines the elects chemical property

Question 7

What is a period?

Answer 7

Row of elects on chart

Question 8

What is a group?

Answer 8

Column of elements on chart?

Question 9

What is a ion?

Answer 9

Adam or group of atoms that wins or loses an electron changing the charge to either positive or negative.

Question 10

What is the atomic number?

Answer 10

The number of protons and electrons in a atom?

Question 11

What is a mass number

Answer 11

Proton plus nuetrons

Question 12

What is a isotope

Answer 12

Atom with the same number of protons as the other of the same element but different number of neutrons

Question 13

What is the atomic mass unit (amu)?

Answer 13

Describes the mass of an atom or molicule, it is 1/12 of the mass of a carbon atom with a mass number of 12

Question 14

What is the average atomic mass?

Answer 14

Weighted average of masses of all naturally isotopes of an element.

Question 15

What is a metal?

Answer 15

Element that is shiny and conducts heat and electricity well.

Question 16

What is a nonmetal?

Answer 16

Element that conducts heat and electricity poorly.

Question 17

What are semiconductors?

Answer 17

Element of compound than can conduct electric current better than an insulator but not as well as a conductor.

Question 18

What are alkali metals.

Answer 18

An element of group one of the periodic table.

Question 19

What is a alkaline earth metal?

Answer 19

An element of group 2 of the periodic table.

Question 20

What are transition metals?

Answer 20

An element of groups 3-12 on the periodic table.

Question 21

What are halogens?

Answer 21

An element of group 17 on the periodic table.

Question 22

What are noble gases?

Answer 22

Up reactive element of group 18 on the periodic table.

Question 23

What is a mole?

Answer 23

Si bas unit of a substance whose numbers of particles is the same as the number of atoms.of carbon in 12g of carbon.

Question 24

What is Avoadros constant?

Answer 24

6.022 X 10^23/mol number of particles in 1 mol

Question 25

What is molar mass?

Answer 25

Mass in grams of 1 mol of a substance.

Question 26

What are conversion factors?

Answer 26

Ratio that derived from the equality of two different units and ca be used to convert one unit to another.