Atoms Flashcards
What are the 3 kinds of atoms?
Protons, neutrons, and electrons
Where are the 3 atoms located?
Protons and neutrons are located in the nucleus and electrons are located in the shell.
What are the charges of the 3 atoms?
Proton - Positive charge
Neutron - No charge
Electron - Negative charge
What does the term ‘mass number’ mean?
Number of protons and neutrons
What does the term ‘atomic number’ mean?
Number of protons and electrons
Where are metals and non-metals placed on the periodic table?
Metals - Left
Non-metals - Right
What is the ability called when a metal is able to be beaten in to sheets?
Malleability
What is the ability called when a metal is able to be made in to wires?
Ductility
What is it called when a metal has a certain shine?
Metallic lustre
What are metals good at conducting?
Heat and electricity
What is it called when metals make a sound when hitting a hard surface?
Sonorous
What is the 2-8-8 rule?
2 electrons fit in the first shell
8 in the second
8 in the third
What is a compound?
A substance made of 2 or more types of elements/atoms.
What is a chemical formula?
A chemical formula tells us what type and how many atoms are in a substance
e.g C⁶H¹²O⁶
