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How many valence electrons are in Cadmium?
2

How many valence electrons are in Iron?
8

How many valence electrons are in Krypton?
8

How many occupied electron shells does Boron have?

How many occupied electron shells does Sulfur have?
3

How many occupied electron shells does Carbon have?
2

Which group and period is Francium?
Group 1, Period 7

Which group and period is Silicon?
Group 14, Period 3

Which group and period is Gold?
Group 11, Period 6

How many protons are in the nucleus of Californium?
98

How many protons are in the nucleus of Einsteinium?
99

How many neutrons, on average, are in the nucleus of Helium?
2

How many neutrons, on average, are in the nucleus of Oxygen?
8
What happens to an ionic compound in water?
It can separate into a positively charged ion and a negatively charged ion
What is a covalent compound?
A compound in which atoms share electrons in pairs
A substance produces H+ ions when put into water. What type of substance is it?
Acid
A base does what when immersed in water?
Gives off OH- (hydroxyl) ions
A substance has a pH of 6.28. Is it acidic or basic?
Acidic
A substance has a pH of 12. Is it acidic or basic?
Basic
Water is neutral, what is its pH?
7
A substance is put into various containers and discovered to have variable shape, depending on what container it’s put in, but always the same volume. What state of matter is the substance in?
Liquid
A gas is a state of matter with ____ shape and ____ volume
variable, variable
If a substance has constant shape and volume it is a
solid
A solid turning directly to gas is called
sublimation
A gas turning directly to solid is called
deposition
A gas turning to plasma is called
ionization
A plasma turning to gas is called
recombination