Properties of Matter
This is one of the four states of matter, along with solid, liquid, and gas.
What is plasma?
This number tells us the number of protons in an atom of an element.
What is the atomic number?
A subatomic particle with a negative charge.
What is an electron?
What is a suspension?
The outermost shell of electrons.
What is the valence shell?
This type of change is known to be irreversible.
What is a chemical change?
This family of elements is known for being unreactive.
What are the noble gases?
J.J. Thomson is credited for this model of the atom named after a British dessert served around Christmas time.
What is the plum pudding model?
In this type of mixture, all parts look the same and are not distinguishable.
What is a homogeneous mixture?
An atom that loses 2 electrons will take on this charge as an ion.
What is 2+ ?
What is a physical change?
Many elements in this family of metals are mineral nutrients that are essential to human health.
This experiment, conducted by Ernest Rutherford, led to the discovery of the nucleus.
What is the gold foil experiment?
First Nations and Metis peoples understand the composition of the physical world in terms of these four elements.
What are water, air, earth, and fire?
Halogens need to gain this many electrons in order to get a full valence shell.
What is 1?
This term describes a substance's ability to be drawn into wires.
What is ductility?
Hydrogen, oxygen, fluorine, bromine, iodine, nitrogen, and chlorine are elements of this type.
What are diatomic elements?
James Chadwick is credited for discovering this subatomic particle.
What is a neutron?
These two types of matter are subcategories of pure substances.
What are elements and compounds?
Table salt is a molecule that is made up of these two elements.
What is sodium and chlorine?
An intense change in colour occurs when an iodine solution is added to this substance, which is evidence of a chemical change.
What is cornstarch?
The elements in this family are all radioactive.
What are the actinides?
The concept of atomism was first proposed by this ancient Greek philosopher.
Who is Democritus?
These types of mixtures cannot be separated out by physical means.
What are solutions? (or homogeneous mixtures)
Atoms steal or donate electrons with another atom to become stable during this process.
What is ionic bonding?