Vocabulary
The small dense region in the center of an atom that contains protons and neutrons.
The nucleus (atomic).
These columns go from top to bottom (vertically) on the periodic table.
The following is a property of a _______.
High melting point.
Metal
There are this many steps to the Scientific Method that WE learned about in class.
6
True or False:
The nucleus is found in the center of the atom and contains protons and electrons.
If false, make the statement true.
False
The simplest pure substance.
An element.
This metal is a solid at room temperature.
Mercury.
The following is a property of a _______.
brittle
Nonmetal
This is the main part of the Scientific Method that we will try to prove or disprove during our lab.
Hypothesis.
True or False:
Electrons have the least mass of all the subatomic particles.
If false, make the statement true.
True.
The measure of the force of gravity on an object.
Weight.
These rows go from left to right (horizontally) on the periodic table.
Periods.
The following is a property of a _______.
Can be ductile or malleable.
Metalloid.
Where are electrons located in relation to the atom?
Around the nucleus (electron cloud).
This subatomic particles determines the identity of an atom.
Protons.
A blending of two or more substances without chemical bonding or other chemical changes, so that each substance keeps its own chemical properties.
A mixture.
These part(s) of the atom make up the atomic number.
Protons!
These particles have no charge (neutral).
Neutron.
What is the best metric unit that should be used when using metric ruler?
centimeters (cm)
What are the role of electrons within the atom?
Electrons are...
outside the nucleus...
have a negative charge...
Tiny particles that make up all matter and cannot be broken down any further.
The atom.
These part(s) of the atom make up the atomic mass.
Protons and Neutrons.
The second orbital can hold a maximum of this many electrons?
8.
List the charges for all three (3) subatomic particles.
proton = +
neutron = 0
electron = -
What do you subtract to calculate the number of neutrons an element has?
Subtract the atomic mass from the atomic number.