Chemistry Fall Semester Exam Review

One-twelfth the mass of a carbon atom having six protons and six neutrons

• mass number

• atomic mass unit

• atomic number

• atomicmass

the number of protons in the nucleus of an element

• mass number

• atomic mass unit

• atomic number

• atomic mass

Tags

NGSS.HS-PS1-8

atoms with the same number of protons, but different numbers of neutrons in the nucleus of an atom

• isotop

• atomic mass

• atomic number

• atomic mass unit

the total number of protons and neutrons in the nucleus of an atom

• mass number

• atomic mass unit

• atomic number

• atomic mass

the weighted average of the masses of the isotopes of an element

• isotope

• atomic mass

• atomic number

• atomic mass unit

name for elements touching the stair-step line

• metalloids

• group

• period

• metals

another name for a family on the periodic table

• metalloids

• Group

• Period

• Metals

the majority of the elements on the periodic table

• metalloids

• Group

• Period

• Metals

the side of the stair-step line where metals are found

• right

• left

• Nonmetals

• Metals

elements that are on the right side of the stair-step line

• right

• left

• Nonmetals

• Metals