Sciences
12 QUESTIONS
Q1. A pure substance that cannot be broken down into any simpler pieces.
A) Elements
B) Netutron
C) Compound
Q2. The smallest unit of an element that retains the properties of that element.
A) Protron
B) Atoms
C) Nucleus
Q3. A particle in the nucleus of an atom that carries one unit of positive electric charge.
A) Molecules
B) Periodic Table
C) Protron
