Matter Matters
Two qualifying properties of matter are
volume and mass
The amount of space an object takes up.
Volume
What are the only 2 subatomic particles that have mass?
Proton and Neutron
What is an element?
Elements are pure substances that are composed of a single atom.
7850 in scientific notation is ______.
7.9 x 103
Density
This subatomic particle orbits the nucleus. It has a negligible mass.
Electrons
What is a compound?
A compound contains 2 OR MORE types of atoms.
0.00045 in scientific notation is ______
4.5 x 10-4
__________ is the amount of matter in an object measured by _____ for units.
Mass, grams
A substance is _________ if it doesn't mix well/adequately with water.
Insoluble
In a periodic table, rows are called _________ and columns are called _________.
Periods, Groups
Isotopes are variants of an element with the same number of ______ as the original atom but have different numbers of _________.
Protons, Neutrons
A ________ exponent in scientific notation tells us that the base number is between 1 and 10.
Positive
_________ is a measure of the gravitational force on an object. This value changes with respect to its proximity to changes in magnitude (strength) of gravitational forces.
Weight
Flammability.
6
The atomic __________ is to an atom as your birth certificate is to you. The atomic __________ describes the same thing as an atom's number of _________.
The atomic number is to an atom as your birth certificate is to you. The atomic number describes the same thing as an atom's number of protons.
The radius of an atom measured in scientific notation would have a _________ exponent because it is __________.
negative, really small!
___________ is the smallest unit/particle that makes up matter. It is made of 3 subatomic particles.
Atom
The __________ of water is the temperature at which evaporation will begin to occur.
Boiling Point.
The Planetary Model
isotope, 7
What type of electrons are involved in chemical bonding?
Valence Electrons