Grab Bag
This is the smallest part of an element.
Atom
(any smaller than an atom and it will no longer retain the properties of that element!)
Objects with the same charge do this when they come close to each other. (+/+ or -/-)
Repel
We learned about three subatomic particles. What are they?
Protons, neutrons, and electrons
What is the mass number of an atom?
The sum of the number of protons and neutrons in that atom.
When adding electrons to the energy levels in a Bohr model, you should begin by adding them to the _________________________ first.
Lowest energy level (or inner-most)
What category of element is Nitrogen?
Non-Metal
Objects with different charges do this when they come close to each other.
Attract
What particles are located outside of the nucleus and have a negative charge?
Electrons
What is the name for the number of protons in an atom of a certain element?
Atomic Number
How many electrons does the first energy level hold?
2 electrons
What category of element is Hydrogen?
Non-Metal
What type of charge does an electron have?
Negative
What particles are located inside of the nucleus and have a positive charge?
Protons
What is the atomic number of Oxygen?
8
How many electrons does the third energy level hold?
8 electrons
How many energy levels would you expect to find in a Francium atom?
7
What kind of particle has a positive charge?
Proton
Atoms of different elements have different numbers of which subatomic particle?
Protons
What is the average atomic mass of Potassium?
39.098 amu
Valence electrons are the electrons in the _______________________ energy level of an atom.
Highest/outermost
What do Carbon, Silicon, and Germanium have in common?
They all have 4 valence electrons
What kind of charge does a neutron have?
Neutral/no charge
2 atoms are isotopes of one another if they have the same number of _______________ and a different number of _______________ .
Mass number - atomic number = ______ __ ________.
The number of neutrons
Electrons in higher energy levels will have ______________ energy than those in lower levels.
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