How many years did Benjamin Franklin serve as president
What is 0
100
In what category are the elements boron, silicon, and germanium?
What is semimetals
100
The ? law of thermodynamics relates change in internal energy to heat and work.
What is . first
200
Name the positive part of an atom
What is proton
200
Name PCl 5
What is . phosphorus pentachloride
200
If you are running a race and pass the person in second place what place are you in
What is 2nd
200
In what category are the elements magnesium, calcium, and barium?
What is alkaline earth metals
200
The ? theory of light states that light is electromagnetic waves traveling as bundles or
"packets" of energy.
What is quantum
300
what is in the middle of an atom
What is neutrons and protons
300
Type the formula for sodium sulfate
What is Na₂SO₄
300
Name a country that starts with you
What is Usa
300
A molecule of CO2, in which two polar bonds point symmetrically in opposite directions, is
What is nonpolar
300
The mass of a substance per unit of volume is called
What is density
400
What determines an atom's identity as an element?
What is number of protons
400
In what category are the elements fluorine, bromine, and iodine?
What is halogens
400
What religion are buddest monks
What is buddism
400
characterized by the sharing of valence electrons with many neighboring atoms forming a
"cloud" or "sea" of delocalized electrons permeating the substance
What is ionic bond
400
A theoretical gas that exactly obeys the assumptions of the kinetic theory would be called
a(n) ? gas.
What is ideal
500
characterized by the sharing of one or more electron pairs between two atoms
What is covalent bond
500
Which of the following elements would you expect to have the greatest electronegativity?
A. S
B. Ca
C. Cl
D. Cs
What is Cl
500
who won the Vietnam war
What is vietnam
500
What principle states that elements tend to react chemically to achieve a noble-gas
electron configuration, whether by losing, gaining, or sharing electrons?
What is octet rule
500
The outermost electrons in an atom, which are involved in chemical bonding, are called
? electrons.