What is the name of element number 15?
Phosphorus
What element has an atomic mass of 238? (Approx)
U, Uranium
How many electrons fit on the orbital f?
14
How do you find an Isotope's mass number?
Add the number of neutrons and the number of protons
What is the name of the element with Atomic symbol Zr?
Zirconium
Figure out the number of electrons on each energy level for NEON
2) 8)
1s22s22p6
How many columns are in the periodic table? and they are...
18 columns and are the Groups
What element is solid and has 11 neutrons? (Neutral Atom)
Sodium, Na
Figure out the number of electrons for each level for BERYLLIUM
2) 2)
1s22s2
What does the term 'valence electrons' mean?
number of electrons on outermost shell, tells how reactive an element is
What element has the Atomic symbol Yb?
Ytterbium
What element has 56 neutrons (Neutral atom)?
Barium, Ba