Valence Electrons
Ca.
What is Calcium?
Where is the atomic number located?
On top of the symbol.
How many periods are there?
What is 7
Molybdenum.
What is Mo?
What are the letters in all the squares called?
The Chemical symbol.
The bold line on the periodic table is along what category of elements?
metalloids
Name all the chemicals with 8 valence electrons.
What are Neon,Argon,Krypton,Xenon,Radon?
Au.
What is Gold?
What is the atomic mass or mass number?
What is the sum of the protons and neutrons in the element's atoms.
This man founded the Periodic Table.
Who is Mendeleev?
What is a Valence Electron?
What is An electron in the highest occupied energy level on an atom.
Mercury.
What is Hg?
What is the largest category on the periodic table?
The Metals.
How many groups are on the periodic table?
What is 18
how many valence electrons does Helium have?
What is 2.
Fr.
What is Francium?
How do you find out the amount of neutrons in a chemical?
Number of Neutrons = Atomic Mass - Atomic Number.
What year was the periodic table invented?
1869