Electrons in Atoms Unit 5
PAP Chemistry
name:__________________________
date ______________
(c = 3.00 X 1017 nm/s) (h = 6.63 X 10-34 J·s)
Follow the instructions given and answer the following FULLY, SHOWING ALL WORK as needed
for credit.
I. Element: Tin
1. Write the complete electron configuration for this element:
2. How many valence electrons are in this element?
__________
3. Write the orbital notation for the valence electrons for this element:
4. How many electrons are on the 3rd energy level for this element?
__________
5. How many pairs of electrons are in this atom's configuration?
__________
6. How many unpaired electrons are in this atom's configuration?
__________
7. What family (group name) does this element belong to? ______________________
8. What are the group numbers for the column this element is in? _______ & _______
9. Classify this element as either a metal, non-metal or metalloid:_________________
10. List 3 (three) general properties of elements in this classification:
1._________________________________________________________________________________
2._________________________________________________________________________________
3._________________________________________________________________________________
II. This element burns in a flame with a light blue color with a wavelength of 540. nm. Calculate the
frequency of this color. Show all formulas,work and units used in solving this problem:
III. Calculate the energy of this blue flame. Show all formulas, work and units used in solving this
problem: