the atom Flashcards
what is an atom
it is the smallest particle of matter
what are atoms made up of
electrons
protons
neutrons
where are protons and neutrons found
in the nucleus
where are electrons situated
orbiting the nucleus
what is the charge for a proton
what is its mass (amu)
a) +
b) 1
what is the charge for a neutron
what is its mass (amu)
a) neutral
b) 1
what is the charge for a electron
what is its mass (amu)
a) —
b) 0
where are electrons found
in shells also known as ENERGY LEVELS or PRINCIPLE QUANTUM NUMBERS (n)
what does the number of shells in a an atom co relate with
the number of shells in a an atom co- relates with its period number in the periodic table
how many electrons can (n=1) carry
n=1 can only carry a maximum of 2 electrons
how many electrons can the remainder of the shells carry
it can carry 8 electrons
what is an orbital
a region of highest probability of finding an electron
nam eten 2 key types of orbitals
s- orbital
p- orbital
S-ORBITAL
its can carry a maximun of how many electrons
2 electrons
S-ORBITAL
how is its shaped
like a sphere
