SCH4C Elemental Symbols, Fundamental Particles
1.
Complete this table:
Symbol  p+1 no e-1
Symbol  p+1 no e-1
11              
178O               
21               
3919K                  
42He               
4019K                  
52He                
23592U                     
63Li                
23992U               
73Li               
23993Np               
168O               
23994Pu               


You'll need a copy of a periodic table for the following questions.
2. Give the numbers of neutrons, protons, and electrons in the atoms of each of the following isotopes

(a) radium-226
 

(b) carbon-14
 

(c) cesium-137 
 

(d) iodine-131
 
3. Write the symbol for the isotope of plutonium (Pu) with 146 neutrons. The atomic number of plutonium is 94.
 
4.  Write the symbols of the isotopes that contain the following.

(a) An isotope of silver whose atoms have 63 neutrons.
 

(b) An isotope of strontium whose atoms have 52 neutrons.
 

(c) An isotope of lead whose atoms have 126 neutrons.
 

 (d) An isotope of fluorine whose atoms have 9 neutrons.