Chemistry - Topic 2 & 3 (Information)
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14 Terms
the nucleus of an atom contains…
protons and neutrons
(order from least to greatest) subatomic particle mass
electron < neutron < proton
what is the equation to find atomic mass?
protons + neutrons = atomic mass
what is in the nucleus and has a positive charge?
protons
what is in the nucleus and has no charge?
neutons
what subatomic particles have nearly identical masses?
protons and neutrons
what two subatomic particles are equal to each other?
protons = electrons
what is the equation to find neutrons?
atomic mass - protons = neutrons
what does the protons stand for on the periodic table?
atomic number
net charge on an atom of a given element changes as _______ are added and removed
electrons
what does the mass number represent?
total number or protons & neutrons
neutral atoms of all isotopes of a given element have the same _____
number of electrons
the atomic mass of germanium (Ge) is 72.630 amu. why is the atomic mass a fraction between 72 and 73?
shows there is a presence of different isotopes
Note 
Flashcards (44)