The smallest particles that still have unique properties and cannot be split any smaller has been given this name.
What is an element?
100
A gas changing to a liquid is called condensation. This process is this type of change.
What is a physical change?
100
This is the Bohr diagram for Carbon.
Have other students check answer.
100
On the periodic table for any element, you can often find the atomic number, atomic mass, the name of the element, and this.
What is the atomic symbol?
100
Write the formula for nickel(III) fluoride
What is NiF3
200
The forces between particles are relatively weak for this state of matter.
What is gas?
200
Mixing two clear and colourless liquids gives a bright yellow and opaque liquid, which hints at this type of change.
What is a chemical change?
200
This is the Bohr diagram for Neon.
Have students check answer.
200
The periodic table, as we know it today arranged by the number of protons, was developed by this Russian chemist.
Who is Dmitri Mendeleev?
200
Write the name for the formula Cs2Cr2O7
Cesium dichromate
300
A process in which one type of matter changes to produce one or more different types of matter with different identities from those of the original matter.
What is a chemical change?
300
When you eat crackers, what kind of change is this? Why?
Chemical (stomach acid breaks down crackers into digestible molecules like fat and starch)
300
This is Bohr Diagram for Potassium.
Have other students check answer.
300
Metals and non-metals are separated on the periodic table by these elements that have properties of both metals and non-metals.
What are metalloids?
300
(NH4)2O is made up of this many atoms in total.
What is 11? N = 2, H = 8, O = 1
400
The strength of the forces between particles in a solid are this.
What is very strong?
400
Burning wood at a campfire is this type of chemical property.
What is combustibility?
400
What is the atomic mass of Iridium? What is the atomic mass measuring?
192.2 It is approximately equivalent to the number of protons and neutrons in the atom
400
Which are the most highly relative metals? What Group/family number are they?
Alkali metals, what is Group 1?
400
Write the formula for the following compound:
aluminum hydroxide
What is Al (OH )3
500
Particle theory rests on four main postulates: 1. All matter is made up of particles, 2. All particles are the same for a pure substance, 3. All particles exhibit an attractive force, and 4. this...
What is "All particles are always in motion"?
500
This is the technical term of a solid that forms during a chemical change. You saw this during the oxygen in water lab.
What is a precipitate?
500
How many valence electrons do Noble gases have? How does this relate to their name of "Noble".