Which of the following describes an isotope? 1. atoms of an element that have the same number of protons but a different number of electrons

2. atoms of an element that have the same number of protons and a different number of neutrons

3. atoms of an element that have the same number of protons and the same number of neutrons

4. atoms of an element that have the same number of electrons and the same number of neutrons

2. atoms of an element that have the same number of protons and a different number of neutrons

Explanation:

Isotopes of an element is made up of atoms of an element that have the same number of protons and a different number of neutrons.

The number of protons are the positively charged particles in an atom

The number of neutrons are the uncharged particles.

Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their carious nuclei.

Isotopes have have the same electronic configuration and hence will have similar chemical properties. They only differ in their masses.

0.19 m/s and 0.45 m/s

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.