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ATOMS
Scientific Method
Matter
Periodic Table
100
the nucleus is composed of what
What are protons and neutrons
100
an organized process used to gather observations and then test a hypothesis
What is an experiment
100
Four states of Matter
What is solid, liquid, gas, and plasma
100
The horizontal rows of the periodic table
What are the periods
200
surrounding the nucleus with a negative charge
What is electrons or electron cloud
200
In an experiment, the condition that changes as a result of manipulating the independent variable
What is a dependent variable
200
Has a pH of 6.99 or less
What is an acid
200
the vertical columns in the periodic table
What are groups or families
300
Discovered that electrons are in a static orbit or specific energy levels
Who is Bohr
300
convert the following number to scientific notation 200,000,000,000
What is 2.0 x 10 11
300
Has a pH of 7.01 or greater
What is a base
300
The elements located along the stair-step line on the periodic table
What are metalloids
400
Protons and neutrons are made up of these smaller particles
What are quarks
400
In an experiment, the condition that is manipulated to cause a change in the dependent variable is called
What is an independent variable
400
The elements are located to the left of the step-stair on the periodic table and tend to lose electrons in chemical reactions, forming a positive ion
What are metals
400
The elements are located to the left of the step-stair on the periodic table and tend to lose electrons in chemical reactions, forming a positive ion
What are metals
500
The atomic number is the same as
What is protons and electrons
500
The SI unit for length is
What is meter