Show:
Sub-atomic Particles
Measurements & Matter
Periodic Table & Electron Configurations
Changes & Properties
Formulas
100
These are the electrons in the outer most electron shell of an atom.
What is a valence electron?
100
This is the SI unit for mass.
What are kilograms (kg)?
100
Name an element that is a metalloid.
B, Si, Ge, As, Sb, Te, Po
100
This phase has a defined volume but no defined shape.
What is a liquid?
100
This is the formula for boron nitride.
What is BN?
200
How many core electrons does argon have?
Argon has 10 core electrons.
200
This is the technique you use to measure the volume of an irregularly shaped object.
What is volume displacement?
200
This element has the following electron configuration: 1s2 2s2 3s2 3p2
What is silicon?
200
Give an example of a physical property.
Malleable, brittle, shiny, ductile, conducts electricity, transparent, dense, etc.
200
This is the formula for calcium chloride.
What is CaCl2?
300
How many protons, electrons, and neutrons does a neutral zinc-65 atom have?
30 protons, 30 electrons, 35 neutrons
300
This is defined as mass divided by volume. It is also how closely packed together matter can be in a defined space.
What is density?
300
This element is in the 5th period and in group 7A
What is iodine?
300
This is the transformation of matter's size, shape, or phase.
What is a physical change?
300
This is what you call two or more atoms of the different elements bonded together.
What is a compound?
400
This is the lightest sub-atomic particle.
What is an electron?
400
This is the piece of equipment that you use to measure mass.
What is a scale?
400
Give the full electron configuration for argon.
1s2 2s2 2p6 3s2 3p6
400
Give an example of a chemical change.
Answers Vary.
400
This is the formula for strontium sulfide.
What is SrS
500
How many protons, electrons, and neutrons does the sodium-23 ION have?
protons = 11, electrons = 10, neutrons = 12
500
Draw a beaker.
500
Give the noble gas electron configuration for calcium.
[Ar] 4s2
500
Name a physical property of a metal.
Luster, shiny, malleable, conducts electrons, etc.
500
This is the formula for magnesium phosphide
What is Mg3 P2?