What is science?
Most scientific questions are developed from...
observations
The four states of matter are...
solid, liquid, gas, plasma
The charge of an atom is...
0
Who created the modern periodic table?
Demetri Mendeleev
CER stands for...
Claim, evidence, reasoning
Are phase changes physical or chemical changes?
physical
This scientist is known as the "father of atomic theory"...
John Dalton
Atoms of elements belonging to the same group have the same number of...
valence electrons
What type of graph is best for showing changes in data over time?
Line graph
Water changing from ice to water requires energy and is called ________________.
endothermic
What are the three subatomic particles in an atom?
Proton, Neutron, and Electron
Group 18 noble gases are inert (non-reactive) because...
their outermost energy level is full.
The thing that is being changed in an experiment is called...
independent variable
The physical or chemical properties that are typically used to describe a substance are called...
characteristic properties
What is the octet rule when referring to valence electrons?
An energy level only needs 8 electrons to be considered "full" even if it can hold more.
Alkali metals often bond with...
halogens.
The thing being measured in an experiment is the...
dependent variable.
Charles' Law explain the relationship between_______________ and ______________ for gases.
volume and temperature
What is the electron configuration for element 15?
1s² 2s² 2p⁶ 3s² 3p³
What two elements are liquids?
Mercury and Bromine