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Wiki User
∙ 11y ago
Wiki User
∙ 13y agoBecause the mass defect is slightly different, the masses won't be exactly the same. However, rounded to the nearest whole number, both carbon-14 and nitrogen-14 have the same atomic mass, and this is only one of many such examples.
Wiki User
∙ 12y agoAll atoms of a single element have the same atomic number. No atom of one element has the same atomic number as any atom of any other element.
Wiki User
∙ 11y agoNo. The atomic number (number of protons) is unique to each element.
Wiki User
∙ 13y agoYes: A common atomic number for all atoms is part of the modern definition of a chemical element.
Wiki User
∙ 11y agoNo, two elements cannot have the same atomic number. Each element has a different number of protons, and the number of protons is what determines the atomic number.
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What happens where two elements have the same atomic number?
No two different elements can have the same atomic number.
Can an atom of two different elements have the same mass number?
Yes. The mass number is basic to the different elements, even more useful than the atomic number. (Unless it is an isotope. Isotopes have a different amount of neutrons than the basic element atom which makes a difference in mass number too. So, a difference in mass numbers doesn't always mean it is a different element.)
Can you always determine an element by the number of neutrons?
No, because some elements have Isotopes, with the same Proton number but different Neutron numbers. Sometimes therefore, the neutron number can overlap with that of isotopes of other elements. For example, two of Helium's isotopes share neutron numbers with two of Hydrogen's isotopes. Deuterium has 1 neutron, and so does 3He, Tritium has 2 neutrons, and so does 4He. It is the number of protons which determines which element it is.
Why atomic radius of barium is less than atomic radius of caesium?
Both cesium and barium have their outermost electrons in the 6s sublevel, Cs with 1 and Ba with 2, but barium has one more proton in the nucleus than does cesium, and this produces a greater effective nuclear charge and more attraction for the outermost electrons. This in turn pulls the two electrons in the 6s sublevel of barium slightly closer to the nucleus compared to the one 6s electron in cesium.
Two atoms will always have the same atomic number if they have the same?
Number of protons
What happens where two elements have the same atomic number?
No two different elements can have the same atomic number.
How atomic number better than atomic mass?
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
No two elements will have the what atomic number?
"same" fits.
Do sulfur-36 and argon-36 have the same atomic number?
No, they have the same atomic mass, which is the number of protons plus the number of neutrons. No two elements have the same atomic number.
Do any two elements have the same atomic number?
no that's not possible
A substance in which one or more atoms have the same number of atomic number?
No two elements have the same number of protons.
Are all elements compounds?
No. Elements are composed of atoms that have the same number of protons (atomic number) in their atomic nuclei. Compounds are composed of two or more elements that are chemically combined.
Are all elements are compounds?
No. Elements are composed of atoms that have the same number of protons (atomic number) in their atomic nuclei. Compounds are composed of two or more elements that are chemically combined.
Two different elements cannot have the same on the periodic table?
Atomic number
Do the elements going horizontally on a periodic table have the same number of electrons?
No two elements would have the same atomic number, so, nor atoms of different elements (in neutral state) would have the same number of electrons.
Why is atomic number better than atomic mass for organizing the elements in the periodic table?
Atomic number is a unique number for each element. No two elements have the same atomic number. Atomic number is also the number of protons in the nuclei of the atoms of any given atom. Atomic mass, however, is the number of protons, neutrons and electrons. The number of neutrons can vary with different isotopes of the same element, this means that atomic mass can vary with different isotopes. So atomic number does not vary, but atomic mass does, so it is more logical to use atomic number to organize the elements. In addition, when the elements are arranged according to atomic number into seven rows and 18 columns, it becomes evident that there are certain trends that occur across the periods, and that elements in the same group have similar properties.
What do notice on the atomic number of elements in a row as one goes to the right of the table?
The atomic number increases from left to right across a period (row). This is because the atomic number is the number of protons in the nuclei of the atoms of each element. No two elements have the same atomic number. It is the protons that define an element.
