Flashcards
C1 - Atoms
Flashcards do conjunto (11)
- 1What subatomic particles are found in the nucleus?Protons and Neutrons
- 2What charge is the nucleus?Positive
- 3Where are electrons found?The outer electron shells
- 4What's the relative mass and charge of a proton?Relative mass - 1
Charge - +1 - 5What's the relative mass and charge of a neutron?Relative mass -1
Charge - 0 - 6What's the relative mass and charge of an electron?Relative mass - so small it's essentially 0
Charge = -1 - 7Why are atoms neutral?They have the same number of protons and electrons so the opposite charges cancel out.
- 8Why are ions charged?The number of protons doesn't equal the number of electrons
- 9What does the atomic number tell you?How many protons there are
- 10What does the mass number tell you?Total number of protons and neurons in an atom
- 11How do you calculate the number of neutrons in an atom?Mass number - atomic number