Variables, Metals, Metalloids, Non - Metals, and More Flashcards
What is an Independent variable?
A variable that changes the outcome.
What is a Dependent variable?
The outcome that depends on the other variables.
What is a Constant variable?
a variable that always stays the same.
What is a control group?
the control group is the same from the start, it is not experimented on.
what is a atom
Smallest building block of matter
what is a isotope
An element with a different # of neutrons
What is an Ion
An atom with a positive or negative charge
What is an element
Composed of many atoms of the same kind.
what do we use mL for
finding volume
What is a graduated cylinder used for
measuring the volume
what is a pipette used for
To transport a measured volume of liquid
what is a beaker
to hold a reaction or to hold liquid or solid samples.
what is a flask
for making reactions and for measuring volume
Where are the metals located on the periodic table
To the left of the staircase
where are the non metals located
To the upper right of the staircase
where are the semi metals located
On the staircase
Are there any metal properties exceptions
Mercury is a liquid at room temperature
Are there any non metal properties exceptions
Graphite and Iodine are shiny and have luster
Are there any semi metal properties exceptions
Silicon is brittle
What are some metal properties
malleable, good conductors, metallic, shiny
What are some non metal properties
liquid, solid, or gas, not shiny, bad conductors
What are some semi metal properties
solids, usually have a metallic luster
What direction do periods go
horizontal
What direction do groups go
vertical
What is matter?
It is every where/ takes up space
What charge do protons have
Has a positive charge
What charge do electrons have
Negative charge
What charge do Neutrons have
No charge/ neutral
How do you find the number of neutrons in atom
subtract the # of protons from the Mass #
What is the Mass number
the atomic mass but rounded
What are examples of a physical change
changing shape, predicted color change, changing from a liquid to a gas or a solid or vis versa.
What are examples of a chemical change
burning, rotting, rusting, baking, combustion
