What is the purpose of committees such as the Institutional Review Boards for the protection of Human Subjects? A) They write the federal guidelines for the ethical treatment of human subjects.
B) They perform research with human subjects.
C) They review ethical procedures and make sure that their facility is following the
guidelines.

ugh fiel iente of insistí is did kiwis jaj

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.