NURSING EXAM QUESTIONS
MICROBIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
neutrons only
|
|
|
electrons
|
|
|
mass numbers
|
|
|
masses
|
Detailed explanation-1: -Answer and Explanation: The answer is c) the same number of electrons. For neutral atoms of isotopes of the same element, these have the same number of protons and electrons which is also equal to the element’s atomic number. They differ in the number of neutrons which affect their atomic mass.
Detailed explanation-2: -All isotopes of an element have the same number of protons and electrons, which means they exhibit the same chemistry. The isotopes of an element differ only in their atomic mass, which is given by the mass number (A), the sum of the numbers of protons and neutrons.
Detailed explanation-3: -The number of electrons on a neutral atom is equal to the number of protons in the nucleus of the atom. This is known as the atomic number, Z. The removal or addition of electrons to a neutral atom creates ions that have a net negative or positive charge.