Periodic Table
Atomic Structure
Guess which atom
Vocabulary
Random Stuff
100
Rows, or horizontal lines, on the periodic table are called:
What are "periods?"
100
Most of the mass of an atom is found here.
What is the nucleus?
100
Group 1, Period 4
What is Potassium (K)?
100
An electron orbital is called...
What is a shell (or energy level)?
100
True or False: An atom always has the same number of protons and neutrons.
What is false?
200
Columns, or vertical lines, on the perioidic table are called:
What are Groups
200
Atoms are typically neutral in charge because they have the same number of these particles
What are protons and electrons?
200
Period 2, with a full valence shell
What is Neon (Ne)?
200
The diagram that shows ONLY valence electrons around the atomic symbol is called...
What is an Electron Dot Diagram?
200
The element on the Periodic Table with no neutrons.
What is Hydrogen?
300
This group # is made of non-reactive gases.
What is Group 18, the noble gases?
300
The atomic mass is the mass of these particles combined
What are protons and neutrons?
300
Two electrons in the first shell, three in the second shell
What is Boron (B)?
300
Atomic mass is measured in this.
What is an AMU (atomic mass unit)?
300
True or False: The Bohr model of the atom is the most current representation of the atomic model.
What is False? (The Schrodinger - or "cloud" model is the most current)
400
This group of elements have properties of both metals and non-metals.
What are the Metalloids
400
The outermost shell of electrons is also known as...
What is the valence shell?
400
One electron away from having three full shells
What is Chlorine (Cl)?
400
The number of the periodic table that matches to the number of protons in an atom
What is the atomic number?
400
These are the four fundamental interactions that bind all matter together.
What are gravity, electromagnetism, the strong and weak nuclear forces?
500
This group contains the highly reactive non-metals
What is Group 17, the halogens?
500
By looking at this, you can tell you if an atom is stable or likely to bond with another element.
What is the number of valence electrons?
500
The Alkali Earth metal with the greatest mass.
What is Radium (Ra)?
500
An electron is this type of fundamental particle - point-like and without internal structure
What is a lepton?
500
Elements with large atomic masses and high numbers of neutrons tend to be this.
What is unstable (or radioactive)?
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