Atoms and Molecules Flashcards
1
Q
Contain one kind of atom
A
Elements
2
Q
Positive charge
A
Protons
3
Q
Negative charge
A
Electrons
4
Q
Neutral charge
A
Neutral
5
Q
Number of protons in the nucleus
A
Atomic number
6
Q
Center; made of protons & neutrons
A
Nucleus
7
Q
Distance of electrons from nucleus
A
Shell
8
Q
Abbreviations for the names of elements
A
Chemical symbols
9
Q
Atoms share electrons
A
Covalent bond
10
Q
Positive and negative ions attract each other
A
Ionic bond
11
Q
An atom that has gained or lost electrons
A
Ion
12
Q
Have a sour taste; ex: lemon juice, vinegar, & HCI
A
Acid
13
Q
Taste bitter and feel slippery; ex: soap, toothpaste, & baking soda
A
Base
14
Q
The scale used to determine the concentration, or amount, of an acid or base in a solution
A
pH scale
15
Q
Acids measure from…
A
0 to 6.9
