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Each element has its own characteristic atom in which a. the atomic weight is constant b. the atomic number is constant c. the mass number is constant?
Wiki User
∙ 14y ago
b. the atomic number is constant. The mass number is not constant because there are isotopes of an element that have the same number of protons but different number of neutrons. Likewise, there are isotopes of the same element with different atomic weights.
Wiki User
∙ 14y ago
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Why was basis of classification of element in the periodic table changed from atomic mass to atomic number?
Mendeleev's periodic table was based on the atomic masses of elements. However, this was not effective when isotopes were discovered. An isotope of an element is defined as the element having the same atomic number but varying mass numbers. So, mass numbers weren't constant and hence, a better characteristic was chosen -atomic number. Atomic number of any element was a characteristic of a particular element. Hence atomic numbers were taken as the basis of classification instead of atomic masses.
What does the expression mean atomic number?
"Atomic number" is a characteristic of a chemical element and equals the number of protons in each nucleus of an atom of the element.
What is an atomic number and how is the atomic number used to distinguish one element from another?
The atomic number is equal to the number of protons in the atomic nucleus. It is an individual characteristic.
What does an atoms atomic number tell about the atom?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
What does the atomic number of the atom tell us?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
Why was basis of classification of element in the periodic table changed from atomic mass to atomic number?
Mendeleev's periodic table was based on the atomic masses of elements. However, this was not effective when isotopes were discovered. An isotope of an element is defined as the element having the same atomic number but varying mass numbers. So, mass numbers weren't constant and hence, a better characteristic was chosen -atomic number. Atomic number of any element was a characteristic of a particular element. Hence atomic numbers were taken as the basis of classification instead of atomic masses.
What characteristic of an element tells the number of protons in its nucleus?
Its atomic number.
What does the expression mean atomic number?
"Atomic number" is a characteristic of a chemical element and equals the number of protons in each nucleus of an atom of the element.
What is an atomic number and how is the atomic number used to distinguish one element from another?
The atomic number is equal to the number of protons in the atomic nucleus. It is an individual characteristic.
Which number associated with an atom is a characteristic property?
Atomic number is a characteristic property of an atom. Each element has its own unique atomic number, which is the number of protons in the nucleus of an atom.
What does the atomic number tell us about an atoms?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
What does an atoms atomic number tell about the atom?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
which characteristic gives the most information about what kind of element an atom is?
the atomic number <<< apex : )
What element has a gram atomic mass that is greater than the gram atomic mass of the element with an atomic number higher by one unit?
Both argon and cobalt have this characteristic.
What does the atomic number of the atom tell us?
Atomic number, being a characteristic property (property that is diff. for each element), it identifies the element, For instance, Oxygen has an atomic number of 8, and it's the only one that has that atomic number, same with any other element, except that no other element has an atomic # of 8. No two elements can share an atomic number.
Does any element have the same atomic number as silicon?
No. Atomic numbers are characteristic of elements. Each element has its own unique atomic number. Only the 24 known isotopes of silicon will have the same atomic number because, only the atomic mass varies. Th element is still the same, i.e., silicon.
What characteristic of an element is the average mass of it's isotopes?
The atomic weight of an element is a number that takes into account the natural distribution of the isotopes of that element.
