| Chemical Symbol Name | Pb Lead Plumbum |
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Do isotopes have the same number of neutrons and electrons?
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.
What isotopes have the same number of protons?
Atoms of the same element, containing the same number of protons, but different numbers of neutrons, are known as isotopes. Isotopes of any given element all contain the same number of protons, so they have the same atomic number (for example, the atomic number of helium is always 2).
What element has the same proton neutron and electron?
| Elementary Particle Charge Mass | Proton +1 1 | Neutron 0 1 | Electron −1 ~0 |
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How many stable isotopes have equal numbers of protons and neutrons?
The stable isotopes form a “peninsula of stability” in a “sea of instability.” Only two stable isotopes , 1 H and 3 He, have a neutron-to-proton ratio less than 1. Several stable isotopes of light atoms have a neutron-to-proton ratio equal to 1 (e.g., 42He, 105B, and 4020Ca).
Would isotopes of the same element have the same number of electrons?
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.
Do isotopes have to have same number of electrons?
Chemical properties
In any neutral atom, the number of electrons is the same as the number of protons. As a result, isotopes of the same element also have the same number of electrons and the same electronic structure .
How are isotopes of the same element alike?
Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons . Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties.
What 3 things do isotopes of the same element have in common?
(iii) And if it is the same isotope, each nucleus contains the same number of neutrons , where the neutron is a massive, fundamental particle of zero charge. The number of protons and neutrons gives the identity of the isotope. There are three common isotopes of hydrogen: protium,1H;deuterium,2H,andtritium,3H .
Which of the following is the same for isotopes of an element?
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).
Which element has the most 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. Some isotopes are stable and some are unstable.
Which elements have same number of protons?
| Name | Carbon | Neutrons | 6 | Electrons | 6 | Atomic Number (Z) | 6 | 12 |
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Are proton and neutron numbers the same?
The number of protons in the nucleus of the atom is equal to the atomic number (Z) . ... The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).
Do all elements have stable isotopes?
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.
What makes an isotope more stable than another isotope of the same element?
Stable isotopes do not decay into other elements. In contrast, radioactive isotopes (e.g., 14C) are unstable and will decay into other elements. ... The chemical bonds and attractive forces of atoms with heavy stable isotopes are stronger than those in the more common, lighter isotopes of an element.
How many stable isotopes does CS have?
Caesium ( 55 Cs) has 40 known isotopes, making it, along with barium and mercury, one of the elements with the most isotopes. The atomic masses of these isotopes range from 112 to 151. Only one isotope , 133 Cs, is stable.
Do isotopes of the same element have the same mass number?
Isotopes of any given element all contain the same number of protons , so they have the same atomic number (for example, the atomic number of helium is always 2). Isotopes of a given element contain different numbers of neutrons, therefore, different isotopes have different mass numbers.
Do isotopes have more protons than neutrons?
The terms “isotope” or “nuclide” are appropriately used in this context. With only the two exceptions of Hydrogen 1 and Helium 3, all isotopes that are stable with respect to radioactive decay do not have more protons than neutrons . Only 13 isotopes have equal numbers of protons and neutrons.
Do isotopes have the same nucleon number?
Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei.
How are isotopes of the same element alike quizlet?
how are isotopes of a particular element alike? ... The number of protons in that element .
Why do elements have different isotopes?
All oxygen atoms on Earth (and Universe) have the same number of protons (and electrons), But they can have different numbers of neutrons. Different isotopes of the same element have different masses. ... Therefore, elements have different isotopes due to the varying number of neutrons found in the nucleus of the atom .
What is all elements in the same one of these has the same number of energy levels in their electron cloud?
If they're in the same group they have similar valence electrons. If they're in the same period they have the same number of energy levels in their electron cloud.
What are isotopes How are isotopes of a particular element alike and how are they different?
Isotopes are atoms of the same element (same atomic number, ie same number of protons in the nucleus) but different atomic masses (different mass numbers) due to different numbers of neutrons in the nucleus .
How do isotopes of an element differ in what ways are they the same?
Isotopes of an element will contain the same number of protons and electrons but will differ in the number of neutrons they contain . In other words, isotopes have the same atomic number because they are the same element but have a different atomic mass because they contain a different number of neutrons.
What characteristic of an element differs between isotopes?
The number of neutrons in the nucleus determines the specific isotope of an element. The only difference between isotopes of an element is the number of neutrons present .
What quantities vary between isotopes of an element?
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 .
Do all elements have the same number of protons and electrons?
Atoms do not always contain the same number of electrons and protons , although this state is common. When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons).
What is the most common isotope?
Carbon-12 , the most common isotope of carbon, contains six protons and six neutrons. Therefore, it has a mass number of 12 (six protons and six neutrons) and an atomic number of 6 (which makes it carbon). Carbon-14 contains six protons and eight neutrons.
Do two elements have the same number of protons?
Explanation: Atoms from two different elements may have the same number of neutrons, but never the same number of protons . The number of protons is unique to the element and represents the atomic number.
Do all elements have the same number of protons and neutrons?
Atoms of a particular element must have the same number of protons but can have different numbers of neutrons. When an element has different variants that, while all having the same number of protons, have differing numbers of neutrons, these variants are called isotopes.
Which of the following have equal number of neutrons and protons?
Explanation: Deuterium also known as heavy hydrogen is one of the two stable isotopes of hydrogen. The nucleus of deuterium called deutron contains one proton and neutron.
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.
Which elements have no stable isotopes?
Isotopes per element. Of the known chemical elements, 80 elements have at least one stable nuclide. These comprise the first 82 elements from hydrogen to lead, with the two exceptions, technetium (element 43) and promethium (element 61) , that do not have any stable nuclides.
How do you find the isotope of an element?
Subtract the atomic number (the number of protons) from the rounded atomic weight . This gives you the number of neutrons in the most common isotope. Use the interactive periodic table at The Berkeley Laboratory Isotopes Project to find what other isotopes of that element exist.
