SCIENCE TEST 2024
Atom - answerThe basic unit of an element
Nucleus - answerProtons and neutrons clump together at the center of an atom to form
the nucleus of an atom.
Reactivity - answerA mesurement of how readily a substance undergoes a chemical
reaction.
Group/Families - answerVertical columns on the periodic table that share physical and
chemical properties
Periods - answerThe physical and chemical properties in horizontal rows on the periodic
table
Alkali Metals - answerONE valence electron in the outer shell
MOST reactive
Alkaline-Earth Metals - answerTWO valence electrons
Reactive but not as reactive as Alkali Metals
Halogens - answer7 valence electrons
Very reactive
Poor conductors
Noble Gases - answerFull set of valence electrons
NOT reactive/inert
Molecule - answerTwo or more atoms bonded together.
Metals - answerMost elements
Solid at room temp
Shiny
Ductile
Malleable
Good Conducters
Atom - answerThe basic unit of an element
Nucleus - answerProtons and neutrons clump together at the center of an atom to form
the nucleus of an atom.
Reactivity - answerA mesurement of how readily a substance undergoes a chemical
reaction.
Group/Families - answerVertical columns on the periodic table that share physical and
chemical properties
Periods - answerThe physical and chemical properties in horizontal rows on the periodic
table
Alkali Metals - answerONE valence electron in the outer shell
MOST reactive
Alkaline-Earth Metals - answerTWO valence electrons
Reactive but not as reactive as Alkali Metals
Halogens - answer7 valence electrons
Very reactive
Poor conductors
Noble Gases - answerFull set of valence electrons
NOT reactive/inert
Molecule - answerTwo or more atoms bonded together.
Metals - answerMost elements
Solid at room temp
Shiny
Ductile
Malleable
Good Conducters
