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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
All atoms on the periodic table are elements. An element is a pure chemical substance made up of only one type of atom	Element
Two or more atoms that have been chemically joined together. They are not pure	Compounds
Two or more types of atoms that are not chemically joined together	Mixture
Gold is a pure substance and bronze is a mixture (not pure)	Why gold is a pure substance and bronze is not
protons and neutrons in the nucleus, electrons in the outer shells	Protons, neutrons, electrons
Have a positive charge	Protons
have no/neutral charge	Neutrons
have a negative charge	Electrons
atomic number is number of protons, mass number is number of protons + the number of neutrons. The number of electrons is the same as protons if the atom is neutral.	How to calculate the number of protons, neutrons, and electrons
First, 2, second, 8, third, 8, fourth, 2	how many electrons can be in each shell and what order do they go in?
How many electrons the atoms have on their outer shell (goes up and down)	Groups
How many shells the atoms have (goes across)	Periods
Metals, non-metals are poor heat conductors	Do metals or non-metals conduct heat well?
They lose electrons	What do metals do to become positive ions?
Yes	Do metals conduct electricity?
Mercury	Which metal is not a solid?
Carbon	Which non-metal can conduct electricity?
Left	What side are Metals on the periodic table
above with a plus of minus sign next to it	When you are telling us the number of electrons the atom has on the outer shell you put that number..
below	When you are telling us how many of the same atom are in a compound you put that number...
When they lose or gain electrons	how do atoms turn into ions
Hydrogen	H =
Helium	He =
Lithium	Li =
Beryllium	Be =
Boron	B =
Carbon	C =
Nitrogen	N =
Oxygen	O =
Fluorine	F
Neon	Ne
Sodium	Na
Magnesium	Mg
Aluminium	Al
Silicon	Si
Phosphorus	P
Sulfur	S
Chlorine	Cl
Argon	Ar
Potassium	K
Calcium	Ca
Sodium Carbonate	Na2CO3
Lithium Oxide	Li2O
Hydrogen sulfide	H2S
Sodium Hydrogen Carbonate	NaHCO3