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For the same element the number of protons and electrons remains unaltered.
Howerm for that same element the number of neutrons can vary., leading to different atomic masses.
Taking hydrogen as an example. It has three isotopes.
#1 ; protium ; 1 proton , 0 neutrons (Atomic Mass ; 1 + 0 = 1 )
#2 ; deuterium ; 1 proton , 1 neutron ( Atomic mass ; 1 + 1 = 2)
#3 ; tritium ; 1 proton, 2 neutrons ( Atomic Mass ; 1 + 2 = 3)
Notice for each isotope of hydrogen there is only ONE proton. However, for each different isotope of hydrogen there is a different number of neutrons.
The Atomic Mass is the sum of the protons and neutrons).
#4 ; Helium(He) ; 2 protons, 2 neutrons ( atomic mass 2 + 2 = 4 ).
For comparison helium has 2(TWO) protons and 2 neutrons, but it is an entirely different element, because it has a different number of protons.
What else can I help you with?
Do all elements in the same group have the same atomic mass?
No. Atoms of the same element can have different masses as the number of neutrons can vary. Atoms of the same element but with different masses are called isotopes.
How different isotopes of the same element element differ?
Differences in IsotopesThey have different numbers of neutrons and therefore different mass numbers.
Define the term isotope?
Any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights.
How do you know that isotopes exist?
Isotopes are known to exist because they are variants of a particular chemical element with the same number of protons but different numbers of neutrons, resulting in different atomic masses. These variations can be detected through techniques like mass spectrometry and nuclear magnetic resonance. The existence of isotopes has been confirmed through experimental evidence and scientific research.
How does one isotope differ from another isotope of the same element?
Isotopes of an element have a different number of neutrons. For example Uranium-235 and Uranium-238 look chemically identical but 238U atom is slightly more massive due to the three extra neutrons.
Isotopes are atoms of the same element that have different atomic masses?
Yes. An element is defined by its atomic number, the number, or the number of protons in its nucleus. When an atom has more or less neutrons it is still the same element, but a different isotope of that element.
Which statement best explains how isotopes can have different masses and still be the same element?
Two atoms which have the same no. of protons but different no. of neutrons are termed as isotopes. Since the identity of an atom depends on the no. of the protons present in its nucleus, so the two atoms are of the same element
Isotopes have the same number of but different numbers of?
The number of protons (and electrons in a neutral atom) is identical. The number of neutrons is different for each isotope.
Do all elements in the same group have the same atomic mass?
No. Atoms of the same element can have different masses as the number of neutrons can vary. Atoms of the same element but with different masses are called isotopes.
How different isotopes of the same element element differ?
Differences in IsotopesThey have different numbers of neutrons and therefore different mass numbers.
Define the term isotope?
Any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights.
How do you know that isotopes exist?
Isotopes are known to exist because they are variants of a particular chemical element with the same number of protons but different numbers of neutrons, resulting in different atomic masses. These variations can be detected through techniques like mass spectrometry and nuclear magnetic resonance. The existence of isotopes has been confirmed through experimental evidence and scientific research.
How does one isotope differ from another isotope of the same element?
Isotopes of an element have a different number of neutrons. For example Uranium-235 and Uranium-238 look chemically identical but 238U atom is slightly more massive due to the three extra neutrons.
What are atoms of an element that have the same atomic number but different weights referred to as?
Isotopes The weights are different because the quantity of neutrons are different. However, the Isotopes still have exactly the same number of protons and electrons as each other, so they are chemically identical. Just the weights are different.
If there was an atom of this element that has 18 neutrons would it still be the same element?
Yes. Atoms with a different number of neutrons are called isotopes of that atom, but a variation in the number of neutrons does not change what the atom is.
Why doesn't the number of neutrons identify an element?
To completely specify the type of atom, you would have to know the element and the isotope - that is, the number of protons and the number of neutrons. If either of these is different, you have a different type of atom. Isotopes of different elements (i.e., different number of protons) may have the same number of neutrons: in total, 118 elements are known (the number of protons can go from 1-118), but over 3000 types of atoms or isotopes are known.
Are all of the particles in the same element are different?
No, all particles in the same element are not different; they are identical in terms of their atomic structure. Each atom of a given element has the same number of protons, which defines the element itself. However, atoms of the same element can have different numbers of neutrons, resulting in isotopes, which have slightly different properties but are still considered the same element.
