Neutrons and protons are in the nucleus
electrons are on shells which orbit the nucleus
D ) 0.30 atm, you just subtract 1.5 with 1.2 I forgot what the law was called
Answer:
C. representative elements.
Explanation:
Families 1 - 2 and 13 - 18 are called representative elements or often times, main group elements.
- Elements on the periodic table belongs to four blocks which are s, p, d and f blocks.
- Those in the s and p-blocks are the main group elements also called representative elements.
- Their outer-shell are not completely filled with electrons but their inner shell is completely filled.