1.2 Elements and compounds Flashcards
1
Q
element
A
composed of atoms that have the same atomic number
2
Q
compound
A
a substance formed when two or more chemical elements are chemically bonded together
3
Q
atom
A
the smallest component of an element
4
Q
proton
A
make up part of the nucleus of all atoms except hydrogen
5
Q
neutron
A
An elementary particle without an electrical charge
6
Q
electron
A
an elementary particle with negative charge
7
Q
nucleus
A
the center core of an atom that has a positive charge
8
Q
molecule
A
the smallest particle in a chemical element or compound
