What is the basic building block for all matter in the universe?
atom
The particle in an atom that is neutral and have no charge is...
Neutron
An atom with atomic number 6 would have how many protons?
6
The central region of an atom where its neutrons and protons are is its...
Nucleus
The positive particles of an atom are...
protons
Electrons have what type of charge?
Negative
How many protons are in the element sodium?
10
How many electrons are in the element oxygen?
8
"C" is the element symbol for which element?
Carbon
A particle that moves around the nucleus is a(n)...
electron
What does the nucleus consist of?
Protons and neutrons
What is the number of protons that the element in this image contain?
7
How many total electrons does carbon have?
6
What are the 3 particles that make-up an atom?
Protons, neutrons and electrons
Who first proposed that everything in the world was made up of tiny particles, Dalton or Democritus??
Democritus
Democritus called the tiniest particles of matter "atomos", which is Greek for _____
indivisible, unbreakable
