Atoms Family
What is atomic mass.
The weight of an atom. The total of the protons and neutrons.
Neutrons have a ______ charge.
What is : uncharged/ neutral
As you read the Periodic Table from left to right the atomic mass _______.
A. Increases, B: Decreases, C: Stays the same
What is: A, Increses
What two particles must be equal to form a neutral atom?
What is: protons and electrons
What particle lives in the rings in the Bohr diagram?
What is: Electrons
The positively charged particle in an atom.
What is : A proton
Electrons have a mass that is ____________ amu.
close to zero
Which element has a higher atomic mass, Gold or Silver?
What is: Gold
How many electrons can the third shell hold?
What is: 18 electrons
How many electrons are present in a neutral Rubidium atom?
What is: 37
The subatomic particles in the nucleus of an atom.
What is: neutrons and protons
The negative electrons travel around _________ .
What is : The nucleus or electron orbital/ rings
The number of valance electrons Barium has.
What is: 2
What is the symbol for the heaviest element on your Periodic Table.
What is: Og
Draw a Helium Bohr Model.
teacher check.
2P, 2N, 2 electrons drawn on the ring.
In an atom, which has the least mass? A: nucleus B: proton C: neutron D: electron
What is: D, electrons
If an electron is added to a neutral atom, the total charge will become ________.
What is: Negative (ion)
It is Mg.
What is: the atomic symbol for Magnesium?
Why do we study models of atoms instead of atoms directly?
What is: They are too small
Which order do electrons get added to a Bohr Model?
What is: Inside-out
What is the atomic number?
What is: The atomic number is the number of protons in an atom.
The nucleus of an atom has a _______ charge.
What is: positive
Name an element with 3 electron orbitals (rings).
What is:
Sodium or higher
How many elements are on the Periodic Table?
118
Draw an oxygen Bohr model.
teacher check.
P:8, N:8, 2 electrons on inside ring, 6 electrons on the outside ring.