An element with the atomic number twelve
A. is C
B. is MG
C. has 12 neutrons, but could have a different number of protons.
D. must have 12 protons and 12 neutrons.
E. Has 12 electrons, but could have a different number of protons
Answer: B
An element with the atomic number twelve
A. is C
B. is MG
C. has 12 neutrons, but could have a different number of protons.
D. must have 12 protons and 12 neutrons.
E. Has 12 electrons, but could have a different number of protons
Answer: B