Element, Compound, Mixture
Atoms Be Like
Solid, Liquid, Gas
Periodically...
Mrs. Bryant's Choice
100
Chlorine (Cl)
Is this an element, compound, or mixture?
Element
100
How many protons are in Silicon (Si)?
14
100
True or False: The distance between molecules in a gas is much larger than that in a solid or a liquid.
True
100
What information does the period give us about an atom?
The number of energy shells (orbitals).
100
What family does Fluorine (F) belong to?
Halogen Family
200
Sodium Chloride (Table Salt, NaCl)
Is this an element, compound, or mixture?
Compound of Sodium (Na) and Chlorine (Cl)
200
How many neutrons are in Boron (B)?
6
200
The atoms or molecules of a _______ form a pattern.
Solid
200
What information does the group give us on the Periodic Table?
Valence Electrons and Properties
200
When water (H2O) goes from liquid to a gas state, what is its chemical formula?
H2O
300
Hydrogen Peroxide (H2O2) is used as an antiseptic to clean wounds and injuries. Is this an element, compound, or mixture?
Compound
300
The nucleus of an atom consists of what two subatomic particles?
Protons and Neutrons
300
In this state of matter, the atoms or molecules move about freely and collide randomly with the walls of a container and with each other.
Gas
300
A highly reactive metal would be found where on the Periodic Table of Elements?
Left side
300
Why, when electrons are viewed under a microscope, do they appear as a cloud around the nucleus of an atom?
They are fast, small, and constantly moving.
400
Salt is dissolved into warm water. Is this an element, a compound, or a mixture?
Mixture
400
Which subatomic particle contributes very little mass to the atom?
Electrons
400
In this state of matter, the atoms are closely locked in position and can only vibrate.
Solid
400
A brittle, semi conductor would be found in what family of the Periodic Table of Elements?
Metalloid
400
This image best represents which state of matter?
Gas
500
What type of mixture is Jello?
Homogenous
500
How many valence electrons does Aluminum (Al) have?
3 because it is group 13
500
In this state of matter, the atoms and molecules can collide with and move past one another and take the shape of their container.
Liquid
500
Why are elements of the Halogen family non reactive (inert?)
They have full valence electrons.
500
How are elements grouped together on the Periodic Table of Elements?
By element properties/characteristics.