The smallest particles that still have unique properties and cannot be split any smaller has been given this name.
What is an element/atom?
John Dalton's model of the atom is called...
What is the "billiard ball model"?
Na
What is an element?
The particles in this type of matter are spread far apart from each other.
What is gas?
Leaving a shovel out in the rain and then for a number of days is an example of this.
What is a chemical change?
Which scientist proposed the plum pudding model of the atom?
Who is J.J. Thompson?
C02
What is a compound?
Water and sugar, steel, apple juice, and air are all examples of this type of mixture.
What is a solution/homogeneous mixture?
Draw the Bohr diagram for Neon.
Who is J.J. Thompson?
Cl2
What is a compound?
The person that proposed that matter was composed of only four main elements: earth, water, air, and fire.
Who is Empedocles?
Burning wood at a campfire is this type of chemical property.
What is combustibility/flammability?
Draw the Bohr diagram for Carbon.
Answers will vary.
H2O is made up of this many atoms in total.
What is 3?
2 hydrogen and 1 oxygen
Particle theory rests on four main postulates: 1. All matter is made up of particles, 2. All particles have distance between them, 3. All particles exhibit an attractive force, and 4. this...
What is "All particles are always in motion"?
This is the release of energy from the decaying of an atom's core.
What is a radioactivity?
How many electrons should be in chlorine's valence shell?
What is 7?
This group of neutral elements have a full stable octet, and they go by this name.
What are noble gases?
(NH4)2O is made up of this many atoms in total.
What is 11? N = 2, H = 8, O = 1