Astable atom that has a large nucleus most likely contains
more neutrons than protons.
more protons than neutrons.
equal numbers of protons and neutrons.
changing numbers of protons and neutrons.

Option (a) is the correct answer.

Explanation:

It is known that ratio of neutron is to proton is equal to 1.5.

Mathematically,              

This means that in a large nucleus there will be 2 protons for 3 neutrons. That is, the number of neutrons will always be slightly greater than the number of protons.

Hence, we can conclude that a stable atom that has a large nucleus most likely contains more neutrons than protons.

d is the answer

sorry if its wrong!

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.