Which answer choice best explains why atoms of carbon-14 (C-14) are unstable? A-Atoms of C-14 have too many negatively charged electrons and too few positively charged protons.
B-Atoms of C-14 have too many positively charged protons and too few negatively charged electrons.
C-There are 2 more protons than neutrons in the nucleus.
D-There are 2 more neutrons than protons in the nucleus.