Elements
True vs. False: elements can be further broken down by chemical means into simpler substances.
What is false?
the chemical symbol for oxygen
What is O?
True vs. false: Metals can be hammered into sheets and pulled into wires.
What is true?
The letters in a chemical formula tell you which ____ are in a molecule.
What are elements?
A molecule is a group of ____ bound together.
What are atoms?
Elements are chemically combined to form a ____.
What is a compound?
The chemical symbol for potassium
What is K?
Used in computer semiconductors.
What are metalloids?
The numbers in a chemical formula tell you how many ____ of each _____ are in a molecule.
What are atoms, element?
Between a molecular and an ionic compound, water is a ____.
What is a molecular compound?
This term, starting with an i, describes the behavior of noble gases.
What is inert?
The element with a symbol of F
What is fluorine?
Have a low density and are poor conductors of heat and electricity.
What are nonmetals?
Chemical formulas are always written with ____ numbers as the subscripts.
What is "whole"?
Ionic compounds are held together by the attractive forces between these two things.
What are positive and negative ions?
Former name for copper.
What is cuprum?
The chemical symbol for magnesium
What is Mg?
An alloy is a mixture of 2 or more of these type of element.
What are metals?
This is how you would you pronounce Ca(NO3)2.
What is "Ca [pause] N O three, taken twice."
True vs. False: the properties of elements change once those elements are bound in a compound.
What is true?
Name all 7 diatomic elements.
What are hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine?
The element with a symbol of Li
What is Lithium?
Name all 7 metalloids.
What are: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium?
Mg(HCO3)2 has ___ magnesium atoms, ___ hydrogen atoms, ____ carbon atoms, and ____ oxygen atoms.
What is 1, 2, 2, 6?
A ____ is a positive ion, and a ____ is a negative ion.
What is cation, anion?