Chemistry & Bio Chemistry Flashcards
0
Q
What is the atomic number equal to
A
The number of protons
1
Q
What is an atom
A
The smallest building block of life
2
Q
What is the atomic mass number equal to
A
Neutrons + protons = atomic mass
3
Q
Protons
A
Positive charge
4
Q
Neutrons
A
Neutral charge
5
Q
Electrons
A
Negative charge
6
Q
Ions
A
An atom with too few or too many electrons
7
Q
Isotope
A
two or more atoms with the same number of protons but a different number of electrons
8
Q
Valence electrons
A
Outer shell of an atoms electrons
9
Q
Ionic bond
A
A bond between opposite charged ions
10
Q
Covalent bond
A
A bond where atoms share electrons
11
Q
Polar
A
A negative and positive charged molecule
12
Q
Hydrogen bond
A
Positive H2O attracted to negative H2O
13
Q
Cohesion
A
Atoms attracted to the same type of atom
14
Q
Adhesion
A
Atoms attracted to different types of atoms
