Metric
Formulas
Definitions
Unit II
Definitions II
100

2.54 cm

What is 1 inch?

100

mass\volume.

What is density?

100

A combination of two or more pure substances.

What is a mixture?

100

Grams

What are the units for mass?

100

Two or more atoms of the same element with different numbers of neutrons.

What are isotopes?

200

1 newton

What is the unit for force?

200

c/λ 

What is frequency?

200

In any chemical process, the total mass stays the same.

What is Law of conservation of mass?

200

Joules

What is the unit for energy?

200

A relationship in which as one unit increases the other increases also.

What is directly proportional?

300

1/s

What is the unit for Hertz?

300

h * f

What is Energy?

300

A pure substance that cannot be broken down into simple substances.

What is an element?

300

Hertz

What is the unit for frequency?

300

Tiny packets of energy.

What are photons?

400

1 cm3 in liquid volume.

What is 1mL or one cc?

400

Atomic mass / total mass

What are atomic mass proportions?

400

A pure substance composed of two or more elements.

What is a compound?

400

Liters

What are the minutes for volume?

400

Specific wavelengths emitted by atoms when excited by a flame.

What is the atomic spectrum?

500

10-9 m

What is the unit for wavelength?

500

protons + neutrons

What is the mass number?

500

In a given compound, a fixed amount of one element will combine with the other elements in small whole number ratios.

What is Law of multiple portions?

500

66 * 10-24 g or the mass of 1 proton.

What are amu?

500

The principle that electrons fill orbitals from lowest energy state to highest.

What is the aufbau principle?