Atoms and Ions Flashcards
Where are metals found in the Periodic table?
Left hand side and the middle.
Where are non-metals found in the Periodic table?
Right hand side
What are the three sub-atomic particles that make up an atom?
Protons, neutrons and electrons
What do we call the outer electron shell around an atom?
Valence shell
How many electrons can the first energy level/ shell hold?
2
How many electrons can the second energy level/ shell hold?
8
How many electrons can the third energy level/ shell hold?
8
What is the charge of a Proton?
Positive
What is the charge of an electron?
Negative
What is the charge of a neutron?
No charge / neutral
An atom has 6 electrons; how many protons will it have?
6
What does the mass number of an atom tell you?
The number of protons and neutrons.
What does the atomic number tell you about an atom?
The number of protons and electrons an atom has.
What do we call atoms which have the same number of protons but different mass numbers?
Isotopes
Use the number form to explain the electron arrangement of Aluminium
2 , 8 , 3
