bonding Flashcards
(23 cards)
what is an ion
charged particles
give an example of a single atom
Na plus (+)
give an example of a group of atoms
NO -3
what is a negative ion
anion
what is a positive ion
cations
how are negative ions formed
when atoms gain electrons
how are positive ions formed
when atoms lose electrons
gaining electrons means
having more electrons than protons
losing electrons means
having more protons than electrons
how does the number of electrons lost or gained compared to the charge on the ion
the number of electrons lost or gained is the same as the charge on the ion
what is the charge if 2 electrons are lost
2+
what is the charge if 3 electrons are gained
3-
which groups on the periodic table are metals
1,2,3
do groups 1,2 and 3 lose of gain electrons
they lose electrons to form positive ions
which groups on the periodic table are non-metals
5,6,7
do groups 5,6 and 7 gain or lose electrons
they gain electrons to form negative ions
how does the group of the ion relate to the electrons in the outer shell
elements in the same group have the same number of electrons in their outer shell
what is the charge of hydrogen
H+
what is the charge of hydroxide
OH-
what is the charge of ammonium
NH4+
what is the charge of carbonate
CO3 2-
what is the charge of nitrate
NO3-
what is the charge of sulfate
SO4 2-
