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Calculations
Scientific Method
Periodic Table
MISC.
MISC.
2
100
Prefix of kilo means
What is 1000
100
Process of gathering information through the senses is called
What is observation
100
Each energy level of an atom has a maximum number of_____it can hold
What is electrons
100
What is the most penetrating type of radiation
What is gamma rays
100
What has mass and takes up space
What is Matter
200
SI unit for time
What is second
200
When designing an experiment the first step is to
What is to state the problem
200
Dot diagrams are used to represent
What is the outer level electrons
200
Elements that lie along the stair-step line of the periodic table are
What is metalloids
200
If At(astatine) goes through an alpha decay what does it become
What is Bi(Bismuth)
300
box is25cm long, 6cm wide, and 4cm high. How much water can it hold
What is 600cm3
300
An explanation of an even that is based on repeated observations and experiments is a
What is a theory
300
A chemical symbol represents the ____of the element
What is the name
300
a helium nucleus with two protons and two neutrons is called a
What is alpha particle
300
How long does it take 100g sample of As-81 to decay to 6.25g As-33sec(1/2life)
What is 132sec
400
How many meters are there in 1,865cm
What is 18.65m
400
A factor that does not change in an experiment is the
What is the constant
400
A certain atom has 26 protons, 26 electrons, and 30 neutrons, what is its mass number?
What is 56
400
Both a fusion reaction and fission reaction____
What is Produce energy
400
Two or more elements combined is known as what
What is a compound
500
What is the Density of a computer with a mass of 20g and a volume of 5cm3
What is 4g/cm3
500
studying the effect of one thing on another in order to test a hypothesis is a(n)
What is an experiment
500
Noble gasses are in
What is Group 18
500
what is the charge on protons, neutrons, and electrons
What is positive, neutral, and negative
500
_____is another name for a homegeneous mixture
What is a Solution