7.a
7.b
7.c
Periodic Table
Review
100
This is the most common type of element.
What are metals?
100
Tin has the atomic number 50. Which means it has 50 of these as well.
What are protons? / What are electrons?
100
Name 3 physical properties.
What are Density, Hardness, Color, Shape, Temperature, Texture, Size, Mass, Weight, ect. (answers may vary)
100
This element is what we breathe.
What is Oxygen?
100
This is how many protons Krypton has if it has 36 electrons.
What is 36?
200
This is what the atomic number represents.
What are protons?
200
This is how you can find an element's mass.
What is the added number of protons and neutrons?
200
An element has to have this to be able to transfer heat.
What is Thermal Conductivity?
200
These elements make up table salt.
What is Na (sodium) and Cl (Chlorine)?
200
This is the atom with the lowest atomic number.
What is Hydrogen?
300
These elements have properties of metals and non-metals.
What are semi-metals?
300
This is what transmutation is.
What is changing the atom completely?
300
The forces that hold the atoms together relate to these 2 things.
What is melting temperature and hardness?
300
This element has the atomic number of 3.
What is Lithium?
300
These atoms have something in common: Carbon-12, Carbon-13, and Carbon-14.
What is they are all Isotopes?
400
This is the most reactive group on the periodic table.
What is group 17?
400
This is what makes some Isotopes radioactive.
What is an unstable nuclei?
400
As boiling and melting points get higher, so does this.
What is pressure?
400
These are the groups that can bond.
What is groups 1,2,13,14,15,16, and 17?
400
Atoms of substances that are good electrical conductors have this type of electrons.
What are freely moving electrons?
500
These elements are found in groups 3-12.
What are transition metals?
500
This is the amount of time it takes a radioactive isotope to decay to half its mass.
What is a half life?
500
Water boils at these temperatures at higher elevations because the atmospheric pressure is lower than at sea level.
What is lower temperatures?
500
This is the atomic mass of an element with 6 protons, 8 neutrons, and 6 electrons.
What is 14?
500
This is why some elements are considered synthetic.
What is large quantities not commonly found in nature?
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