UNIT 1 Vocab
The formation of a new substance with different properties; cannot be undone by phisical means
Chemical Change
Mass
the amount of matter in something
change which alts the physical properties of a substance without changing its identity
Physical change
ability to conduct electrical current of thermal energy
conductivity
What direction do "groups" go on a periodic table?
straight up and down
a representation of a compound in which the elements are represented by their symbols and subscripts represent the number of atoms of each element
Chemical Formula
Volume
the amount of space that a substance or object occupies
the solid that is formed as a result of a chemical change
Precipitate
ability to be stretched in to a wire without breaking
ductility
What direction do periods go on a periodic table?
straight left to right
representation of the name of an element; written as a capital letter or a capital letter followed by a lowercase letter(s)
Chemical symbol
Malleability
ability to be formed or shaped under pressure (metals hammered or rolled into thin sheets)
a substance that is not mixed with any other substance
Pure substance
How the surface of a mineral apperars when it reflects light
luster
What is the symbol for the element arsenic
As
a pure substance made bu chemically combining two or more elements; represented by a chemical formula
Density
the amount of matter that will fit into a given amount of space
Subscript
the number written to the right and slightly below an element in a chemical formula; represents the number of atoms of an element present in a chemical formula
Metalloids exhibit some properties of who?
metals and nonmetals
Potassium
Element
a pure substance that cannot be broken down chemically into simpler substances
Hardness
ability of a mineral to resist scratching
How many protons does nitrogen have
7
What properties do metals have?
luster, conductivity, and malleability; may appear in all three states of matter
Which element is on group 4, period 2?
zirconium