CH11 The Periodic Table Vocabulary

Question 1

proton

Answer 1

subatomic particle that has a positive charge and is located in the nucleus of an atom

Question 2

neutron

Answer 2

subatomic particle that has no charge and is located in the nucleus of an atom

Question 3

electron

Answer 3

subatomic particle that has a negative charge and is located in orbitals or rings around the nucleus

Question 4

Dimitriv Mendeleev

Answer 4

creator of the periodic table who arranged the elements by increasing atomic mass

Question 5

Group

Answer 5

a column on the periodic table, tells you how many outer electrons an element will have, there are 18

Question 6

Period

Answer 6

a row on the periodic table, tells you how many electron rings an element will have, there are 7

Question 7

Periodic Table

Answer 7

chart of the elements arranged in rows and columns according to the elements’ physical and chemical properties

Question 8

Alkali Metal

Answer 8

an element in group 1 on the periodic table

Question 9

Alkaline Earth Metal

Answer 9

an element in group 2 on the periodic table

Question 10

ductility

Answer 10

the ability of a substance to be pulled into thin wires

Question 11

luster

Answer 11

the ability of a metal to reflect light

Question 12

mallebility

Answer 12

the ability of a substance to be hammered or rolled into sheets

Question 13

transition element

Answer 13

element in groups 3-12 on the periodic table

Question 14

metal

Answer 14

generally shiny element, easily pulled into wires or hammered into thin sheets; a good conductor of electricity and thermal energy

Question 15

halogen

Answer 15

element in group 17 on the periodic table

Question 16

metalloid

Answer 16

element with physical and chemical properties of metals and nonmetals

Question 17

noble gas

Answer 17

element in group 18 on the periodic table

Question 18

nonmetal

Answer 18

element that has no metallic properties

Question 19

atomic number

Answer 19

equals the number of protons or electrons of an element on the periodic table

Question 20

semiconductor

Answer 20

material that conducts electricity at high temperatures but not at low temperatures