True or False
Radon is the heaviest gas.
Radon
What is the center of the atom called?
The Nucleus
What is the symbol for Oxygen
O
What is the element for Ne
Neon
What is a Group
Helium is the lightest element.
False
Which subatomic particle has the lightest mass?
Electron
What is the symbol for Sodium
Na
What is the element for I
Iodine
What is the atomic number of hydrogen?
1
Periods in the periodic table go up and down
False
What are the three subatomic particles
Proton, Neutron, and Electron
What is the symbol for Gold?
Au
What is the element for Pt?
Platinum
What is the heaviest element?
Oganesson
Electron Dot Diagram shows only valence electrons
True
The atomic number is the number of?
What is the symbol for Iron?
Fe
What is the element for Pb?
Lead
What is an isotope?
Elements of atoms with the same number of protons but different neutrons
The atomic number of Osmium is 76
True
What is the outermost electrons
Valence Electrons
What is the symbol for Mercury?
Hg
What is the element for W?
Tungsten
How many liquids are on the periodic table?
Two