Which of these elements has 12 protons in its nucleus (atomic number = 12)? What are the first 20 elements of periodic table - Science - Physical and Chemical Changes - 9807489 | Meritnation. com

A. Mg

B. S

D. C

D. He

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

because his fleet was much lager than the english fleet. i hope this .

answer; u.s senate;

answer; health-related quality of life;