Ok, so like in chemistry we are learning about exceptions in Physics too! Sigh. So, which nuclide(s) is/are stable with a N/Z ratio less than 1?

Q. Which among the following nuclides is/are likely to be stable?

Q. Assertion :Nuclide ${}_{13}{Al}^{30}$ is less stable than ${}_{20}{Ca}^{40}$. Reason: Nuclides having odd number of protons and neutrons are generally unstable.

Q. If $5$ maths, $3$ physics, $2$ chemistry books are arranged in a shelf so that all physics books and chemistry do not come together, then possible number of arrangements is

Q.

If the N/Z ratio of an atom is less than 1 then the nuclide is said to be stable. Here 'N' is the number of neutrons and 'Z' is the atomic number. Which of the following nuclides is stable?

Q. State whether true or false:
When we want to talk about quantities which are more or less than enough, we use too much, too many, too few and too little before a noun.