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20 questions
In an element box, the number at top is the
atomic number
atomic name
atomic mass
atomic symbol
The number of neutrons in an atom can be found by
adding the number of neutrons and protons together.
adding the atomic mass and the atomic number.
subtratcting the atomic number from the atomic mass.
subtracting the atomic mass from the atomic number.
___________________ are positively charged particles located in the nucleus of an atom.
Electrons
Neutrons
Protons
Isotopes
Elements on the Periodic Table are ordered according to their
element name
element symbol
number of atoms
atomic number
Rows in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
Column in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
The elements that touch the zigzag line on the Periodic Table are called
metals
nonmetals
metalloids
gasses
The nucleus of an atom is located in its
electron cloud
center
proton
backpack
What do atoms of the same periodic group have in common?
They have the same atomic number.
They have the same chemical symbols.
The have similar chemical properties.
They have the same atomic mass.
Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.
positive; negative, neutral
positive, neutral, negative
neutral, negative, positive
negative, neutral, positive
The chemical symbol in this element box is
26
Fe
Iron
55.845
The three kinds of elements are
metals, nonmetals, and liquid metals
metals, nonmetals, and metalloids
metals, solids, and liquids
metalloids, asteroids, and nonmetals
The number of electron shells an atom has is equal to the element's:
Period number
Group number
Valence number
Atomic number
The number of valence electrons an element has is equal to its:
Period number
Group number
Valence number
Atomic number
a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means
element
subatomic particle
electron
matter
the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom
element name
element symbol
atomic number
atomic mass
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
Valence electrons are found
in the innermost energy level of an atom
in the middle energy levels of an atom
in the outermost energy levels of an atom
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