Periodic Table

Question 1

an arrangement of elements in columns, based on a set of properties that repeat from row to row

Answer 1

Periodic Table

Question 2

A chemist who developed the periodic table and organized elements by their properties while leaving empty spaces for more elements to be discovered

Answer 2

Mendeleev

Question 3

A pure substance that cannot be broken down

Answer 3

Element

Question 4

A row going across on the Periodic Table

Answer 4

Period

Question 5

A column going up and down on the Periodic Table

Answer 5

Group / Family

Question 6

The pattern of repeating properties down each group in the periodic table

Answer 6

Periodic law

Question 7

A one or two letter symbol that represents that name of an element first letter is capital and potential second letter is lowercase

Answer 7

Chemical / Element Symbol

Question 8

number of protons in an element,
atomic is also equal to the number of electrons

Answer 8

Atomic number

Question 9

The number of protons and neutrons in the nucleus center of an element

Answer 9

Atomic mass

Question 10

A material that allows things to flow

Answer 10

Conductor

Question 11

elements that are good conductors of heat and electric current

Answer 11

Metal

Question 12

elements that are poor conductors of heat and electric current

Answer 12

Nonmetal

Question 13

elements with properties that fall between those of metals and nonmetals

Answer 13

Metalloid

Question 14

Elements in group 18, stable and unreactive

Answer 14

Noble Gas

Question 15

A particle with a positive charge, same amount as atomic number, this particle identifies the element

Answer 15

Proton

Question 16

A particle with a neutral charge, same amount as (atomic mass - atomic number

Answer 16

Neutron

Question 17

A particle with a negative charge, same amount as atomic number

Answer 17

Electron

Question 18

Electrons on the outermost shell

Answer 18

Valence Electron

Question 19

Outer boundary of an atom, mostly empty space, each shell starting from the first shell can hold

Answer 19

Orbital / Shell / Energy Level

Question 20

the center of an atom that contains neutrons and protons and therefore most of the mass

Answer 20

Nucleus (in an atom)

Question 21

a force of attraction between atoms to make them more stable

Answer 21

Chemical Bond

Question 22

when atoms transfer electrons and become charged particles

Answer 22

Ion

Question 23

the force of attraction that holds together positive and negative ions, a transfer of electrons

Answer 23

Ionic Bond

Question 24

A force of attraction that holds together two atoms and shares electrons

Answer 24

Covalent Bond

Question 25

shows the elements involved in that molecule and the number of atoms of each element

Answer 25

Chemical Formula

Question 26

Shows the molecules involved in a reaction reactants show the ingredients and the products show the results

Answer 26

Chemical Equation