Midterm Formulas Flashcards
Behavior of a solid:
Fixed shape/Fixed volume
Measurements:
Composed of numbers and units
The formula for Celsius to kelvin
C+273
Is one kelvin the same size as on Celsius?
Yes
Gas
Has no definite shape or volume
Conversion factors use
Unwanted units in the numerator, and the denominator of another term
Formula for Fahrenheit to Celsius
5/9(F-32)
Formula for celcius to Fahrenheit
9/5(c+32)
Carbon is
Different from most other elements; it exists on 3 elemental forms
A columnof the periodic table is a
Group
A row of the periodic table is called a
Period
Elements in the same group have the same number of
Valence electrons
Electronic structure of an atom
Electrons occupy discrete energy levels, the energy of electrons is quantized, and the energy of electrons is restricted to specific values
Ionic compounds are
Solids at room temperature
Metals
Lose electrons
Ionic bonds form between
Metals and non- metals
Elements in group 2a form ions with a +2 charge true or false
True
Name for unshared pair of electrons in a covalent compound
Ione pair of electrons
Bonding is the joining of two atoms in a stable arrangement
true
an ionic compound is/has:
Between a metal and a non-metal, not always soluble in water, has high melting points, high boiling points, a crystalline solid at room temp, and are held together be cations and anions
Polyatomic ions are anions
false
Does ate or ite have the smaller number of oxygen atoms?
ite
covelant bonds result from the - electrons between two atoms
equal sharing+ unequal sharing
A molecule is:
A group of atoms held together by covelant bonds.
Alloy definition
A mixture of one or more metallic elements
An electron cloud
Has the most mass in an atom, and stores the electrons
