How are isotopes related to the structure and composition of an atom?
The number of protons determines an element’s atomic number and is used to distinguish one element from another. The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess.
What is the relationship between an atom and an isotope?
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
What is the structure of atoms and why are there isotopes?
Each atom has a charged sub-structure consisting of a nucleus, which is made of protons and neutrons, surrounded by electrons. The number of protons and the mass number of an atom define the type of atom. Atoms of the same element with different mass numbers are called isotopes.
How do isotopes affect atomic structure?
Isotopes are atoms that have the same atomic number but different mass numbers due to a change in the number of neutrons. While the presence of isotopes affects the mass of an atom, it does not affect its chemical reactivity. Chemical behavior is governed by the number of electrons and the number of protons.
How are atoms ions and isotopes different?
An atom is the smallest part of an element that can exist either alone or in combination with other atoms. Isotopes are atoms that have the same number of protons but different numbers of neutrons. An ion is an atom or molecule with a positive or negative charge. A cation is an ion with a positive charge.
Why do atoms have different isotopes?
Neutrons exist to stabilize the nucleus – without them, the nucleus would consist of nothing but positively-charged protons in close proximity to one another. Because there are different ways of stabilizing the protons, there are different isotopes.
What is the difference between and atom and an isotope?
An atom is the smallest part of an element that can exist either alone or in combination with other atoms. Isotopes are atoms that have the same number of protons but different numbers of neutrons.
How are atoms and isotopes similar?
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.
What is the structure of isotopes?
Atoms of the same element must have the same number of protons , but they can have different numbers of neutrons . Atoms of the same element with different numbers of neutrons are called isotopes .
How do isotopes fit into the modern periodic table?
What is an isotope? 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 do isotopes affect the periodic table?
Explanation: The quoted atomic mass on the Periodic Table is the WEIGHTED average of the individual isotopic masses. The higher the isotopic percentage, the MORE that isotope will contribute to the isotopic mass. For this reason, most masses that are quoted on the Table are non-integral.
How do isotopes form?
Isotopes can either form spontaneously (naturally) through radioactive decay of a nucleus (i.e., emission of energy in the form of alpha particles, beta particles, neutrons, and photons) or artificially by bombarding a stable nucleus with charged particles via accelerators or neutrons in a nuclear reactor.
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