What is meant by an isotope of an element?
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.
What are isotopes easy explanation?
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, we can also say that isotopes are elements with the same atomic number but different mass numbers.
Where is the isotope in an element?
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.
How are isotopes defined quizlet?
Isotopes are atoms of an element with the normal number of protons and electrons, but different numbers of neutrons. Isotopes have the same atomic number, but different mass numbers.
How do you write isotopes of an element?
To write the symbol for an isotope, place the atomic number as a subscript and the mass number (protons plus neutrons) as a superscript to the left of the atomic symbol. The symbols for the two naturally occurring isotopes of chlorine are written as follows: 3517Cl and 3717Cl.
What is called isotope?
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. For example, carbon has six protons and is atomic number 6.
What are isotopes Class 12?
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 number.
How do isotopes of an element differ quizlet?
Isotopes are atoms of the same element that have the same number of protons but a different number of neutrons. Therefore, isotopes have the same atomic number (number of protons) but a different mass number (number of protons plus number of neutrons).
What is the reason the isotopes of an element are different?
all isotopes have the same number of protons and the same number of electrons. Because the electron structure is the same isotopes have the same chemical properties. What is different is the number of neutrons, The different number of neutrons all cause a difference in the atomic weight or mass of the atoms.
How do the isotopes of an element differ from one another?
Isotopes differ from one another in the number of neutrons they possess. Because of their differing number of neutrons, isotopes also differ in their mass numbers, the total number of protons and neutrons.
How does an isotope differ from a regular atom of that element?
These different atoms of the same element are called isotopes. They are different from each other by having a different number of neutrons. Since the neutron number is different, their mass number also differs. However, the isotopes of the same element have the same number of protons and neutrons.
What is an isotope and how is it determined?
Isotopes are atoms that have the same proton no. but different nucleon no. The chemical properties of an element is determined by its electronic configuration, which is then determined by the no. of protons it has. Since isotopes have the same no of protons at its nucleus, they have the same chemical properties.
What element has the most radioactive isotopes?
Radioactive element includes technetium, which has the most stable isotope and what is estimated as the longest half-life. The least stable element is ununoctium, which has a half-life of 1.8 milliseconds.