What are isotopes in chemistry simple definition?

Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. The number of protons in a nucleus determines the element’s atomic number on the Periodic Table.

What is isotopes and examples?

The atoms belonging to the same element, having same atomic number Z, but different mass number A, are called isotopes. For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.

What is isotope one word answer?

An isotope is a variation of an element that possesses the same atomic number but a different mass number.

What are 3 examples of isotopes?

For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons so that the neutron numbers of these isotopes are 6, 7, and 8 respectively.

What is an isotope symbol?

Who discovered isotopes?

radiochemist Frederick Soddy
Soddy in his lab at the University of Glasgow. In a letter to the editor published in the Dec. 4, 1913, issue of Nature, English radiochemist Frederick Soddy proposed the isotope concept—that elements could have more than one atomic weight. The idea led to his 1921 Nobel Prize in Chemistry.

How are isotopes named?

Explanation: Isotopes are same element with different masses due to the change in the number of their neutrons. Naming isotopes is simple – just get the element’s symbol/name then add the new mass.

What are the types of isotopes?

There are two main types of isotopes, and these are radioactive isotopes and stable isotopes. Stable isotopes have a stable combination of protons and neutrons, so they have stable nuclei and do not undergo decay.

What are isotopes in chemistry class 9?

Isotopes are the atoms in which the number of neutrons differs and the number of protons is the same. From the above definition of atomic mass and the atomic number, we can conclude that isotopes are those elements having the same atomic number and different mass numbers.

What are isotopes give Example Class 9?

Isotopes: the atoms of the same element which have the same atomic number Z but differ in their mass number A are called isotopes. Example: Hydrogen has three isotopes ( 1 1 H , A 1 1 A 2 1 2 1 H , A 1 3 A 2 1 2 3 H ) , Protium, Deuterium, Tritium.

Which of the following best describes an isotope?

Which of the following best describes an isotope? Structurally variant atoms, which have the same number of protons (and electrons), but differ in the number of neutrons they contain.

How are isotopes defined Brainly?

Isotopes are the atoms of the element having same Atomic number (Z) but different Atomic mass (A). This means isotopes of an element have same number of Protons but different number of Neutron in their nuclei. For Eg. Carbon has two Isotopes- 1) C-12 – Atomic no. (

Why isotopes are formed?

This can be done by firing high-speed particles into the nucleus of an atom. When struck, the nucleus may absorb the particle or become unstable and emit a particle. In either case, the number of particles in the nucleus would be altered, creating an isotope.

What are two uses of isotopes?

  • Isotopes of Uranium (Uranium – 235 ) are used as fuels in a nuclear reactor.
  • Isotopes of Is Iodine(Iodine- 131 ) are used in the treatment of goitre.
  • Isotopes of Cobalt (Cobalt – 60 ) are used in cancer treatment.

How many elements are isotopes?

The first 80 elements on the periodic table have stable isotopes.

Who discovered isotopes?

radiochemist Frederick Soddy
Soddy in his lab at the University of Glasgow. In a letter to the editor published in the Dec. 4, 1913, issue of Nature, English radiochemist Frederick Soddy proposed the isotope concept—that elements could have more than one atomic weight. The idea led to his 1921 Nobel Prize in Chemistry.

How are isotopes named?

Explanation: Isotopes are same element with different masses due to the change in the number of their neutrons. Naming isotopes is simple – just get the element’s symbol/name then add the new mass.

What are the types of isotopes?

There are two main types of isotopes, and these are radioactive isotopes and stable isotopes. Stable isotopes have a stable combination of protons and neutrons, so they have stable nuclei and do not undergo decay.

Which element has highest number of isotopes?

All elements have a number of isotopes. Hydrogen has the fewest number of isotopes with only three. The elements with the most isotopes are cesium and xenon with 36 known isotopes.

Who named atom?

Democritus
But when it comes to the word atom, we have to go to ancient Greece of 400 B.C. And there was a brilliant philosopher named Democritus, and he proposed the Greek word atomos, which means uncuttable.

How do isotopes work?

An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.