What two atoms have the same mass?
Two atoms with the same atomic number, but different mass numbers (same number of protons, different number of neutrons), are called isotopes, or isotopic nuclides. Having different numbers of neutrons changes the mass of these atoms, so isotopes have slight variations in their physical and chemical behavior.
What is atomic number and mass number Class 9th?
Neutral atoms of each element contain an equal number of protons and electrons. The number of protons determines an element’s atomic number and is used to distinguish one element from another. Together, the number of protons and the number of neutrons determine an element’s mass number.
How do you find isotopes for Class 9?
Elements having same atomic number but different atomic masses are known as Isotopes. Carbon, 136Carbon, 146Carbon, Hydrogen-1, Deuterium–2, Tritium-3 are three isotopes of hydrogen.
What are isotopes for Class 9?
Isotopes: Isotopes are atoms with the same number of protons but that have a different number of neutrons. Since the atomic number is equal to the number of protons and the atomic mass is the sum of protons and neutrons, isotopes are elements with the same atomic number but different mass numbers.
What is isobars class 9th?
Isobars are defined as. The atoms that have same number of nucleons. Isobars of different chemical elements have different atomic number but have the same mass number.
What is difference between isotopes and isobars Class 9?
Answer: Isobar is that element which differs in the chemical property but has the same physical property. Isobars are those elements which have a different atomic number but the same mass number. Isotopes are the atoms in which the number of neutrons differs and the number of protons is the same.
What is Isobar explain with example?
Isobars are atoms of different elements with the same mass number but different atomic numbers. For example, two elements calcium and argon . The number of electrons in these atoms is different, but the mass number of both these elements is 40.
What are isotopes and isobars explain with example class 9?
It has the same atomic mass but different atomic no. Because an additional number of neutrons compensates the difference in the number of nucleons. The example of two Isotopes and Isobars is iron and nickel.