Isotopes
the atomic number of an atom is the same as the
number of protons
an atom or molecule with a net electric charge due to the loss or gain of electrons
ion
the abbreviated electron configuration is also known as
the noble gas configuration
makes up 80% of the periodic table
metals
the creator of the first periodic table
Mendeleev
isotopes have the same number of ______ and different number of _______
protons (electrons also okay), neutrons
if the protons and electrons are equal in an atom, the charge of the atom is
zero or neutral
the full electron configuration of krypton (Kr)
1s22s22p63s23p64s23d104p6
another word for outermost; used to describe outermost electrons and orbitals/shells
valence
atomic radii _____ when going from left to right across the periodic table
decreases
the amount of protons of titanium-50 (Ti-50)
22
the kind of charge an ion would have if it has more protons than electrons
positive
all of the types of orbitals and how many electrons they max out at
s (2), p (6), d (10), f (14)
elements of this broad classification are used in making computer chips
metalloids
the tendency for an atom of a given chemical element to attract electrons
electronegativity
number of neutrons of vanadium-56 (V-56)
33
the charge of cobalt with 24 electrons
+3
[Xe] 6s2 4f14 5d9
gold (Au)
noble gases
put the following in order of increasing ionization energy: strontium (Sr), aluminum (Al), Indium (In)
strontium, indium, aluminum
Sr, In, Al
the element with a mass number of 56 and 26 neutrons
zinc or Zn
the number of electrons that sulfur (S) would have if it was -2 charge
18 electrons
the noble gas configuration of seaborgium (Sg)
[Rn]7s25f146d4
halogens are a special type of
nonmetals
order the following in increasing atomic radii:
Ra, Be, Ca, Rb, H
H, Be, Ca, Rb, Ra