Unit 1 Review-Integrated Science

The vertical columns on the periodic table are called

• periods

• groups

• families

• classes

Horizontal rows on the periodic table are called

• periods

• groups

• families

• classes

Group numbers indicate

• the number of protons in an atom

• how many electron shells an atom has

• the number of valence electrons of the elements in that column

• the number of isotopes present in a family of elements

Families of the periodic table share

• common chemical and/or physical properties

• the same number of valence electrons

• common class and states of matter

• the same number of electron shells

Fusion is

• the energy source utilized in nuclear reactors

• the splitting of large atoms into smaller atoms

• the merging of small atoms into a larger atom

• a "dirty" energy source that results in radioactive waste products

Tags

NGSS.HS-PS1-8

Fission is

• the energy source powering the sun

• the energy source powering nuclear reactors

• what powers hydrogen bombs

• the merging of two small atoms into one larger atom

Tags

NGSS.HS-PS1-8

The "father" of the periodic table is

• Charles Darwin

• Stephen Hawking

• Gregor Mendel

• Dmitri Mendeleev

An isotope is

• an atom that has lost one of more of its valence electrons

• an atom with an different number of protons that the average

• an atom with a different number of neutrons than average

• an atom that is charged

The smallest but most abundant element is

• helium

• hydrogen

• lithium

• beryllium

The smallest subatomic particles with the greatest charge are

• electrons

• protons

• neutrons

• nucleons