Atoms, Molecules, Ions Flashcards
1
Q
atom
A
smallest particle of an element
2
Q
law of conservation of matter (or energy)
A
matter is neither created or destroyed
3
Q
compounds
A
when two or more different atoms chemically bond
4
Q
isotopes
A
formed when an atom gains or loses electrons
5
Q
ions
A
formed when an atom gains or loses
6
Q
molecules
A
formed when two or more atoms chemically bond
7
Q
diatomic molecules
A
occur naturally: N2, O2, F2, Cl2, Br2, I2, H2
8
Q
tetratomic molecules
A
P4
9
Q
Octomic molecules
A
S8
10
Q
cations
A
positive ions
11
Q
anions
A
negative ions
12
Q
polyatomic ions
A
formed when two or more atoms chemically bond, forms charged molecule
13
Q
mole
A
6.022x10^23 atoms, molecules, ions, particles
