A nucleus of carbon 14 has 6 protons and 8 neutrons. The atomic number and mass number of carbon 14 are, respectively, a) 6 and 8
b) 6 and 14
c) 8 and 14
d) 14 and 20
e) 14 and 22

6 and 14 respectively

Explanation:

proton number = atomic number

mass number = proton number + neutron number

since

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray