the equipment and Metric unit used to measure the mass o a solid
What is scale and grams?
100
Noble gases are considered this because their outer shell of electrons is full
What is inert or nonreactive?
100
These subatomic particles are found in the nulceus
What are protons and neutrons?
100
Smell and color represent this kind of data
What is qualitative data?
200
This substance is uniform but each substance keeps its own chemical properties
What is a mixture?
200
temperature and mass represent this kind of data
What is quantitative data?
200
Fluorine belongs to this family
What is Halogen?
200
This results when two or more elements are chemically combined together
What is a compound?
200
Bronze is an example of this compound
What is an alloy?
300
Ocean water is an example of this kind of solution
What is heterogeneous?
300
the atomic number is equal to the number of this subatomic particle
What are protons?
300
the charge on a stable atom
What is no charge?
300
This chemical (hormone) makes you sleepy
What is melatonin?
400
Salt (NaCl) is classified as this
What is a compound?
400
the parts of an experiment that stay the same
What are the constants?
400
this element is a nonmetal and found in charcoal
What is carbon?
400
The atomic weight minus the number of protons gives you this
What is the number of neutrons?
400
Elements in the same period share this characteristic
What is number of electron shells?
500
This is an atom or a molecule where the total number or electrons is not equal to the total number of protons giving that atom or molecule a positive or negative charge
What is an ion?
500
The process where a solid goes to a gas
What is sublimation?
500
These elements do not conduct electricity well, do not conduct heat well but are reactive
What are nonmetals?
500
The number of electrons in the outermost shell
What are valence electrons?
500
This compound is a medium in which many chemical reactions occur