Test review16

Question 0

Nucleus

Answer 0

The small positively charged center of an atom, contains protons and neutrons.

Question 1

Atom

Answer 1

The smallest particle of an element that still retains the properties of the element

Question 2

Proton

Answer 2

Particle in the nucleus of an atom that has 1+ charge.

Question 3

Neutron

Answer 3

Particle in the nucleus of an atom that has a no electric charge

Question 4

Electron

Answer 4

Particle with a charge of 1- that surrounds the nucleus of an atom.

Question 5

Quark

Answer 5

Particle of a matter that makes up protons and neutrons.

Question 6

Electron cloud

Answer 6

Area around the nucleus of an atom where electrons are likely to be found.

Question 7

Atomic number

Answer 7

Number of protons in an atoms nucleus

Question 8

Mass number

Answer 8

Sum of the number of protons and neutrons in an atoms nucleus.

Question 9

Isotope

Answer 9

Atom of an element with a specific number of neutrons.

Question 10

Average atomic mass

Answer 10

Weighted average mass of an elements isotopes according to their natural abundance.

Question 11

Periodic table

Answer 11

Organized list of all known elements, arranged b increased atomic number and by changes in chemical and physical properties.

Question 12

Period

Answer 12

Horizontal row in the periodic table

Question 13

Group

Answer 13

Vertical row in the periodic table

Question 14

Electron Dot Diagram

Answer 14

Uses chemical symbols for an element and dots representing the number of electrons in the elements outer energy level.

Question 15

What is the difference between Carbon 14 and Carbon 12?

Answer 15

Carbon 14 has a bigger mass number

Question 16

H

Answer 16

Hydrogen

Question 17

He

Answer 17

Helium

Question 18

Li

Answer 18

Lithium

Question 19

Be

Answer 19

Berilium

Question 20

B

Answer 20

Boron

Question 21

C

Answer 21

Carbon

Question 22

N

Answer 22

Nitrogen

Question 23

O

Answer 23

Oxygen

Question 24

F

Answer 24

Fluorine

Question 25

Me

Answer 25

Neon

Question 26

Na

Answer 26

Sodium

Question 27

Mg

Answer 27

Magnesium

Question 28

Al

Answer 28

Aluminum

Question 29

Si

Answer 29

Silicon

Question 30

P

Answer 30

Phosphorus

Question 31

S

Answer 31

Sulfur

Question 32

Cl

Answer 32

Chloride

Question 33

Ar

Answer 33

Argon

Question 34

K

Answer 34

Potassium

Question 35

Ca

Answer 35

Calcium

Question 36

Transition Elements

Answer 36

Elements in the middle of the periodic table, groups 4-7

Question 37

Metals

Answer 37

Elements that are found on the left side of the periodic table.

Question 38

Metalloids

Answer 38

Elements that have some properties of both metals and nonmetals

Question 39

The atomic number and number of____?____ | Are equal?

Answer 39

Protons

Question 40

Number of protons + number of____?____ equal mass number?

Answer 40

Neutrons

Question 41

Protons, neutrons, and electrons all make up what?

Answer 41

Atoms

Question 42

The number of neutrons can be found how?

Answer 42

Subtracting the atomic number from the mass number.

Question 43

How many different quarks are there?

Answer 43

6

Question 44

Some atoms may have fewer what?

Answer 44

Neutrons

Question 45

Every atom of Carbon must contain how many neutrons? Others?

Answer 45

Six, eight

Question 46

How many elements are in the periodic table?

Answer 46

117

Question 47

What is the name of the gases in group 18?

Answer 47

Noble Gases

Question 48

Who was Dmitri Mendeleev?

Answer 48

He developed an early periodic chart.