Molecules and Formula Flashcards
1
Q
What are covalent bonds?
A
When electrons are shared between atoms
2
Q
What are ionic bonds?
A
the transfer of electrons between atoms
3
Q
Give 3 examples of covalent bonds?
A
Hydrochloric acid
Oxygen
Water
4
Q
Give 2 examples of ionic bonds?
A
Sodium Chloride (NaCl)
Magnesium Oxide (MgO)
5
Q
What is an ion?
A
A charged atom
6
Q
When atoms lose electrons, do they have a positive or negative charge?
A
Positive
7
Q
When atoms gain electrons, do they have a positive or negative charge?
A
Negative
