Organization of Matter Flashcards
what is the BOHR model
describes the nucleus with electrons orbiting it
protons define __________?
elements
neutrons define ___________?
isotopes
electrons define __________?
the elements bonding properties
chemical reactions cannot change protons and neutrons but can change _____________?
electrons
protons have a mass of ______ and a charge of ______?
1,+1
neutrons have a mass of ______ and a charge of ______?
1, neutral
electrons have a mass of ______ and a charge of ______?
0, -1
number of protons =
the atomic number
number of pro + Neu =
atomic mass
isotope =
same element with different number of neutrons
carbon 12 has ______ protons and _____ neutrons, with an atomic mass of ________
6,6,12
Carbon 13 has ______ protons and _____ neutrons, with an atomic mass of ________
6,7,13
carbon 14 has ______ protons and _____ neutrons, with an atomic mass of ________
6,8,14
the number of electrons dictates what?
the net charge of an atom
H has _____ protons ______ electrons with a net charge of ____?
1,1,0
H+ has _____ protons ______ electrons with a net charge of ____?
1,0,+1
H- has _____ protons ______ electrons with a net charge of ____?
1,2,-1
any atom with a positive or negative charge is a ________?
ion
any atom with a - charge is a _____?
anion
any atom with a + charge is a _____?
cation
nuclear reactions occur when?
protons and neutrons change
Hydrogen 1,2, and 3 have _________ mass, but different __________?
same, neutrons
