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Atomic Structure
Periodic Table
Ions and Molecular Compounds
100
The Law of Conservation of Mass
What is the idea that mass is neither created or destroyed
100
When a wire is cut, and the material has not been changed into a new material, this is an example of what type of change?
What is a physical change
100
the 3 subatomic particles and their charges
What is electron (-), proton(+), and neutron (0)
100
the number of protons in the atom is represented by this
What is the atomic number
100
An ion is formed between these two classes of elements
What are metal and nonmetal
200
An educated guess
What is a hypothesis
200
When a cake is baked and the original substance becomes something entirely different, this type of change has occurred.
What is a chemical change
200
atoms of the same element with different numbers of neutrons
What is an isotope
200

the number of protons and neutrons in an atom is represented by this

What is atomic mass

200

the number of bonds that can be formed by elements in group 5

What is 3

300
Any atom with a positive charge
What is a cation
300

we balance these in compounds and these in reaction formulas

What is a charge and number of atoms?

300

JJ Thompson's discovery with his gold foil experiment

What is the electron

300
elements on the left side of the periodic chart that tend to lose electrons easily
What are metals
300
the total charge of an ionic compound
What is 0
400

vertical column of elements that have similar chemical properties

What is a group/family?

400
A cup of black coffee is an example of what type of mixture, while dirt is an example of what other type of mixture?
What is homogeneous and heterogeneous
400

the maximum number of electrons that can occupy an orbital in an electron configuration

What is 2

400
Elements in group 7
What are halogens
400
the formula and name of the ionic compound that is formed by Lithium (+1) and oxygen (-2)
What is lithium oxide and Li2O
500
the energy required to remove an electron from an atom
What is ionization energy
500
Electrons are lost and gained in this type of bonding while they are shared in what other type of bonding?
What is ionic and covalent bonding
500

the mass of an atom is found here

What is the nucleus

500
Elements in group 1
What are alkali metals
500
the Lewis structure for SeF2
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