Category 1
True or false:
Chemistry is a part of biology
False
Chemistry is a part of science
What component of an atom makes up the electron shell?
The electron
What do you call the symbol used for an atom?
The atomic symbol
What is an atom?
Atoms are the building blocks of all matter
What two components make up the nucleus of an atom?
protons and neutrons
What do you call the number of protons each atom has?
The atomic number
What is a molecule?
Molecules are a group of atoms
What are the 3 components of an atom? (PEN)
Protons, electrons and neutrons
Draw the element: H2O
2 hydrogen atoms
1 oxygen atom
True of false:
Molecules can be made up of the same / different elements
True
What charges do the components of an atom have?
Proton - positive
Electron - negative
Neutron - negative
Draw the element: C6H8O6
6 carbon atoms
8 hydrogen atoms
6 oxygen atoms