Chapter 4, Lesson 1 Flashcards
1
Q
Atom
A
The basic particle from which all elements are made
2
Q
Proton
A
A positively charged particle that is part of an atoms nucleus.
3
Q
Nucleus
A
The central core of an atom.
4
Q
Electron
A
A negatively charged particle that is found outside the nucleus of an atom.
5
Q
Energy Level
A
The specific amount of energy that an electron has.
6
Q
Neutron
A
A small particle in the nucleus of the atom with no electrical charge.
7
Q
atomic #
A
The # of protons in the nucleus of an atom.
8
Q
Isotope
A
An atom with the same # of protons and a different # of neutrons from the other atoms of the same element.
9
Q
Mass #
A
The sum of protons and neutrons in the nucleus of an atom.
