Chemistry Flashcards
1
Q
Definition of Atom
A
The smallest unit of an element that consists of a central nucleus surrounded by electron(s).
2
Q
Definition of Nucleus
A
The majority of the atom’s mass in central part of the atom that contains protons and neutrons.
3
Q
Definition of Proton
A
Positively charged particle, in the nucleus.
4
Q
Definition of Neutron
A
Uncharged particle that is neutral, and is found in the nucleus.
5
Q
Definition of Electron
A
Negatively charged particle, that is in shells surrounding the nucleus.
6
Q
Definition of atomic number
A
The number of protons in the nucleus of an atom.
7
Q
Definition of chemical symbol
A
A letter or letters that makes the element distinguishable.
8
Q
Definition of Ion
A
When you alter the amount of electrons in an atom.
