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Total questions: 25
Worksheet time: 16mins
a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group
family
period
row
isotope
one of several forms of a single element, which contains the same number of protons, but different numbers of neutrons
isotope
ion
orbital
nucleus
a row on the Periodic Table of Elements
family
period
row
isotope
an atom or group of atoms that has gained or lost one or more electrons and is now either positively or negatively charged
isotope
ion
orbital
nucleus
As you move left to right on a row or period what happens?
Atomic number increases by 1
Electrons decrease
Number of shells decrease
Nothing
Elements in the same group have __________
Similar Properties
Same number of shells
Similar Mass
What do all elements in the same period have?
same number of shells
same number of electrons
belong in the same family
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
How do covalent bonds form?
By donating and receiving valence electrons between atoms.
Scientists still aren't sure.
Opposite slight charges attract each atom in the compound.
Sharing valence electrons between atoms
