AP Biology The Chemical Foundation of Life — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP Biology The Chemical Foundation of Life in the app →The four elements common to all living organisms are carbon, hydrogen, nitrogen and:Which subatomic particle carries a positive charge?More than what fraction of an atom's volume is empty space?The time for half of an isotope to decay to its stable form is called its:The region where an electron is most likely to be found is called its:Atomic mass is calculated from protons and neutrons alone because electrons:Carbon-14 contains six protons and how many neutrons?Carbon-14 forms in the atmosphere from nitrogen-14 by:Carbon dating is useful for old bones and wood because carbon-14 has a half-life that is:The octet rule says atoms are most stable energetically when the valence shell holds:Group 17 elements such as fluorine and chlorine tend to form ions that are:Carbon is central to life partly because its outer shell holds four electrons, allowing it to make:Electrons fill orbitals in a consistent order, beginning with those:When several orbitals share the same energy, electrons occupy them:A p subshell is made up of how many orbitals?The electron configuration of hydrogen is written as:Lithium's three electrons are arranged so that:Chlorine's atomic mass is listed as 35.45 rather than a whole number because chlorine: