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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?
The number of neutrons in an atom does not identify the element because different isotopes of an element can have the same number of protons (which determines the element) but varying numbers of neutrons. Isotopes of an element have the same number of protons, but differing numbers of neutrons.
Isomers are different from normal atoms because?
I assume you mean "isotopes" instead of isomers. The term "isotope" refers to the relationship between two or more atoms of the same element which have different atomic masses; therefore, they have a different number of neutrons. Carbon-12 and Carbon-14 are isotopes: same element, different masses. Carbon-12 is more prevalent and more stable, but C-14 is still "normal." P.S. "Isomers" have to do with the "handedness" of molecules. Some are right-handed and others left. It's seen mostly in organic chemistry. Our bodies use Right-handed glucose (D-glucose), but left-handed amino acids (L-alanine, e.g.).
