Periodic Table
Which Elements exist of period 1/group 1
Hydrogen
The atomic number of calcium is 20. This tells us the number of which subatomic particle_______
Protons
What is the energy level of Nitrogen
2
How many valence electrons does Potassium have?
1
A postive ion is called a ___________
Cation
Which Element is on Period 3/Group 6?
Sulfur
Which subatomic particles are located inside the nucleus?
Protons and Neutrons
What is the energy level of Calcium
How many valence electrons does Radon have?
8
A negative Ion is called a ____________
Anion
Which element is in Period 4/Group 8?
Krypton
What do you call the structure in which the electrons orbit?
Electron Cloud
What is the energy level of Xenon?
5
How many valence electrons does Lead have?
4
Isotopes are the same elements with a variation in the number of ____________
Neutrons
How many elements make up the periodic table
118
Where is most of the mass of an atom located?
Nucleus
What is the energy level of the element an atomic mass of 127?
5
How many valence electrons does the elements with the atomic mass 204 have?
3
How many neutrons does S-31 have?
15
How many Metals are located on the periodic table?
92-93
Which subatomic particle is the smallest?
Electron
What is the energy level of cerium?
6
How many valence electrons does Oganesson have?
8
How many neutrons does PO-212 have ?
128