Quiz 1
What does this equation determine; Protons + Neutrons?
A. Mass of an atom
B. Volume of an atom
C. Density of an atom
D. The amount of electrons in an atom
A. Mass of an atom
What is it called when atoms share electrons to form a chemical bond?
A. Covalent Bond
Anything that takes up space and has mass
C. matter
A physical property that describes matter as a solid, liquid, or gas.
2. What are the subatomic particles within an atom?
A. Neutrons, electrons and protonsA. Neutrons, electrons and protons
What is it called when two or more atoms are chemically bonded?
A. Compound
The temperature at which a liquid completely changes to a gas
B. boiling point
The direct transfer of heat from one substance to another substance that it is touching.
A. conduct
What is the atomic number of an atom?
20 sec3. What is the atomic number of an atom?
A. The amount of protons
B. The amount of electrons in an atom
C. Mass Number - Neutrons
D. All of the above
D. All of the above
What do ionic bonds normally form between?
a property of matter that you can observe or measure without changing the nature or identity of the substance or object
physical property
Unit used to measure temperature in most countries.
Celcius
What is located on the right side of the periodic table?
B. Nonmetals
Right side of the periodic table. Brittle, dull, poor conductors of heat and electricity (insulators).
A. Nonmetals
The ability of one substance to dissolve another substance.
Solubility
An object's mass per unit of volume is measured in g/mL or g/cm3
What are the most reactive elements on a periodic table?
Vertical columns on the periodic table. Connected to the number of valence electrons.
C. group
What is a example of a chemical change?
Energy can not be created or destroyed, only converted from one form to another.