Answer: Atomic number is the total number of protons present in the nucleus of atom. It is equals to the total number of electrons present outside the nucleus of an atom. Mass number is the sum of the protons and neutrons present in the nucleus of an atom.
Q. What are called isobars give example?
Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number. An example of a series of isobars would be 40S, 40Cl, 40Ar, 40K, and 40Ca.
Table of Contents
- Q. What are called isobars give example?
- Q. What is mass number Brainly?
- Q. What is atomic number Class 9 Brainly?
- Q. What is atomic number by Brainly in?
- Q. What is atomic mass unit definition?
- Q. What is a rule for determining the mass?
- Q. How do you define an isotope?
- Q. What is an isotope and why is it important?
Q. What is mass number Brainly?
Mass number :- It is the sum of number of protons and neutrons present in the atom of am element. Denoted by “A”. Mass number = Number of protons + Number of neutrons. webew7 and 9 more users found this answer helpful. Thanks 8.
Q. What is atomic number Class 9 Brainly?
Atomic number is the number of protons in an atom and mass number is the sum of protons and neutrons in an atom. musashixjubeio0 and 54 more users found this answer helpful.
Q. What is atomic number by Brainly in?
Answer: The atomic number or proton number of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus.
Q. What is atomic mass unit definition?
: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ the mass of a single atom of the most abundant carbon isotope 12C. — called also dalton.
Q. What is a rule for determining the mass?
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Q. How do you define an isotope?
Isotope, one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behaviour but with different atomic masses and physical properties. Every chemical element has one or more isotopes.
Q. What is an isotope and why is it important?
Isotopes of an element all have the same chemical behavior, but the unstable isotopes undergo spontaneous decay during which they emit radiation and achieve a stable state. This property of radioisotopes is useful in food preservation, archaeological dating of artifacts and medical diagnosis and treatment.
