Atoms Flashcards
What does the nucleus contain?
Protons and neutrons
What overall charge does the nucleus have?
The nucleus has an overall positive charge because protons are positively charged and neutrons have no charge.
What moves around the nucleus?
Electrons
What charge do electrons have?
Negative
How much mass does an electron have?
Virtually no mass
How big are electrons compared to the nucleus?
Tiny
How much space do electrons cover?
A lot of space
What do electrons occupy?
Shells, around the nucleus
What does the size of the electrons orbit determine?
How big the atom is
What charge do neutrons have?
No charge
The number of protons is equal to the number of —- in an atom?
Electrons
Protons are…
Heavy and positively charged
Neutrons are…
Heavy and neutral
Electrons are…
Tiny and negatively charged
What is the middle of the atom?
The nucleus
