Which statement about Atomic Number is correct

A: It is the number of protons in the nucleus of an atom

B: It is the number of neutrons in the nucleus of an atom

C: It is the number of electrons in the nucleus of an atom

D: It is the number of electrons and neutrons in the nucleus of an atom

E: It is the number of protons + neutrons in the nucleus of an atom

F: It is the number of protons + electrons in the nucleus of an atom

Someone please help me :(

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

The smallest particle of an element that retains its identity in a chemical reaction. true or false

In which of the following can you not find plasma