Which element has large number of isotopes?

Which element has large number of isotopes?

The elements with the most isotopes are cesium and xenon with 36 known isotopes. Some isotopes are stable and some are unstable.

What elements have multiple isotopes?

Some elements, such as carbon, potassium, and uranium, have multiple naturally-occurring isotopes. Isotopes are defined first by their element and then by the sum of the protons and neutrons present.

Which of the following has maximum number of isotopes?

The correct option is (c) Polonium. (a) Bromine: Bromine has 2 isotopes.

Do isotopes of an element have different mass numbers?

Basic principles. Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.

How many isotopes are there?

Isotope Facts All elements have isotopes. There are two main types of isotopes: stable and unstable (radioactive). There are 254 known stable isotopes. All artificial (lab-made) isotopes are unstable and therefore radioactive; scientists call them radioisotopes.

Which of the following have approximately the same mass?

Atomic Mass Protons and neutrons have approximately the same mass, about 1.67 × 10−24 grams. Scientists define this amount of mass as one atomic mass unit (amu) or one Dalton.

Which elements have no isotopes?

In 2 additional cases (bismuth and protactinium), mononuclidic elements occur primordially which are not monoisotopic because the naturally occurring nuclide is radioactive, and thus the element has no stable isotopes at all.

How many isotopes does each element have?

An isotope is 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 behavior but with different atomic masses and physical properties. Every chemical element has one or more isotopes.

How many isotopes does xenon have?

nine
The Xenon isotopes can be supplied in various chemical forms. Naturally occurring Xenon has nine stable isotopes.

Can isotopes of different elements have the same mass?

Molar Atomic Masses of Elements The molar mass of an atom is simply the mass of one mole of its identical atoms. However, most of the chemical elements are found on earth not as one isotope but as a mixture of isotopes, so the atoms of one element do not all have the same mass.

Do different isotopes of the same element have the same mass?

For atomic masses, neutrons do not have negligible mass (like the electron), so this therefore indicates different isotopes of the same element have different masses.

How do you find the mass of an isotope?

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

What are isotopes of the same element?

Atoms of the same element which have different masses but same atomic numbers are called isotopes. For example carbon has three isotopes. 12 C 6 13 C 6 14 C 6 and expressed as C–12, C–13 and C–14. Similarly hydrogen has three isotopes H H H called protium, deuterium and tritium.

What is the difference between the atomic number and mass number?

Therefore, the atomic number also indicates the number of electrons in an atom. The total number of protons and neutrons in an atom is called its mass number (A). The number of neutrons is therefore the difference between the mass number and the atomic number: A – Z = number of neutrons.

What is the difference between atomic masses and limiting reactants?

(c) atomic masses are averages masses of isotopes (d) atomic masses are average masses of isotopes proportional to relative abundance Q.39 A limiting reactant is one which

What is the total mass of 6 protons neutrons and electrons?

(An observant student might notice that the sum of an atom’s subatomic particles does not equal the atom’s actual mass: The total mass of six protons, six neutrons, and six electrons is 12.0993 amu, slightly larger than 12.00 amu. This “missing” mass is known as the mass defect, and you will learn about it in the chapter on nuclear chemistry.)