Property of a metal that allows it to be bent easily without breaking.
What is malleability.
200
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What is Chemical Change
200
Define Mixture
What is an impure substance made up of two or more types of particles.
200
A neutral atom that has 4 protons, has how many electrons?
What is 4.
200
This family of elements is inert.
Who are the Noble Gases.
200
A quantitative property that is unique to a solid- phase change from solid to liquid.
What is melting point.
300
Definition of Chemical Property
What is the ability of a substance to change or react, and to form a new substance.
300
A pure substance made up of one type of atom.
What is an element.
300
Scientist who came up with the plum pudding or raisin bun model of the atom- he discovered the electron.
Who is Thomson.
300
The number of valence electrons in the Alkaline Earth Metal family.
What is 2.
300
A quantitative property that looks at the ratio of mass to volume. This is unique for each substance.
What is Density.
400
The phase change that occurs when hot steam from a shower hits the mirror and forms droplets of water.
Condensation.
400
The smallest part of a compound that is still that compound.
What is a molecule.
400
The number neutrons in argon (Ar), element #18.
What is 40-18 = 22
400
This group is made up of elements with 7 valence electrons.
What is the Halogen Family.
400
Draw out the Bohr-Rutherford diagram for potassium.
Drawing should show 19 protons & 20 neutrons in nucleus surrounded by 4 shells: 2, 8, 8, and 1 electron.
500
Adding Epsom salts and bubble bath to a bath...
What is a Physical Change.
500
Use particle theory to explain what happens as a liquid freezes to become a solid.
What is the particles lose energy, slow down, and start to feel a stronger attraction for each other.
500
The number of electrons in a silicon ion (Si+4)
What is ten.
500
These "groups" of elements contains the coinage metals and other non-reactive metals like titanium and platinum.
What is the transition metals.
500
Draw out the Bohr-Rutherford diagram for the sulfur ion.
Diagram should show 16 protons and 16 electrons in the nucleus surrounded by 3 shells of electrons: 2, 8, 8 (it has gained two electrons to become a stable ion with an octet)