Sort each part of the atom in order with its charge.
(On Paper #6)
Protons - Positive,
Neutrons - Neutral,
Electron - Negative
100
Who came up with the design of the periodic table
Dimitri Mendele
100
What properties help define an element?
There are a lot of different properties such as heat conductibility, if its shiny, density, or electricity conductibility.
100
What are subscripts?
Subscripts are the smaller numbers at the side of an element symbol that usually indicates the number of atoms of each element that will be needed for the chemical equation.
100
Where are coefficients located in a chemical equation?
They are written larger than subscripts usually to the left of an element.
200
How do protons determine an element?
Protons identify an element by the amount of protons in each atom every element has a specific number of protons in the atoms
200
What do the rows represent in the periodic table?
The rows represent the different number of atomic orbitals.
200
What part of an element symbol on the periodic table represents the amount of protons or electrons in each element?
The atomic number
200
How can you tell if a chemical reaction occurs in an experiment?
You can tell if a chemical reaction occurred if a gas is produced, temperature change, substance dissolves, color change, changes to a liquid, solid, or gas.
200
Is the chemical equation balanced? (on paper #3)
Yes
300
What is the the atomic mass of an atom made of?
The atomic mass of an atom is the amount of protons and neutrons in a atom.
300
How are the columns in the periodic table arranged?
The columns on the periodic table are arranged by the amount of valence electrons each element has.
300
How do you find the amount of neutrons in a element?
You subtract the atomic number by the atomic mass.
300
If you cook an egg is that a chemical or physical change?
It is considered a a chemical change because its state of matter has changed.