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How can cobalt-60 and cobalt-59 be the same elements but have different mass numbers?
Wiki User
∙ 13y ago
Different number of neutrons.
Audra Weissnat
Wiki User
∙ 15y agoFirst of all, Cobalt -60 and Cobalt- 59 are isotopes. That's why they are the same element but different in their atomic masses, and that's the definition of an isotope.
On the first look, these isotopes are really different in their masses (Look at the 60 and 59). And if you will get their atomic masses (mass x percentage of abundance in decimal no.), they are really different...
Research further to have more bases.
Wiki User
∙ 13y agoThe chemical characteristics of cobalt are determined by the number of electrons around the atom. The number of electrons is the same as the number of protons in the nucleus. This number is the same for the Co-59 and Co-60. However Co-60 has one additional neutron in the nucleus. The nuclear properties are thus different, but not the chemical properties.
Wiki User
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Wiki User
∙ 13y agoThe identify of an element is determined by the number of protons. All cobalt atoms have 27 protons.
But the number of neutrons in an element can vary.
Cobalt-60 has 33 neutrons, while cobalt-59 has 32.
Wiki User
∙ 14y agoThey have different number of neutrons. The number of protons will tell you what the element is - not the mass!
Wiki User
∙ 8y agoBoth are isotopes of cobalt having a different number of neutrons.
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What are the differences among the different elements?
The chemical nature of an element is determined (mainly) by the electronic configuration in the outermost shells. However, most elements have isotopes - atomic configurations that have the same outer shells, but which may have a different number of neutrons in the atom core. This gives them the same chemical nature, but a different mass. Many isotopes are unstable in the long run - they will spontaneously disintegrate.
What makes an element unique?
Every atom has a certain number of protons, neutrons, and electrons. Different elements have different amounts of these. Particularly, different elements have different numbers of protons. For example, if an atom only has 1 proton it must be hydrogen.
Why do all atoms have a different number of protons?
Dear questioner,As an answer to your question I should mention there are atoms which have the same number of protons but are considered different. These atoms are called Isotopes. Isotopes of an element have the same number of protons but the number of Neutrons are not the same. Isotopes have the same chemical virtues but in the physical virtues related to mass they are a bit different.
The elements with atomic numbers of 58-71 not 5-71 are known as what on the Periodic Table?
lanthanides
How were all the elements with atomic numbers higher than 92 created?
Elements that follow uranium are made or synthesized when nuclear particles are forced to crash into one and other.
What do different elements have different numbers of?
Different elements have different numbers of protons. The number of protons identifies the element.
Why atomic number of different elements are different?
Because different elements have different numbers of protons, which determines the atomic number.
Isotpes of elements have different?
atomic numbers
Why are elements unique?
They have different numbers of protons
How many elements within a row different?
They have different numbers of valance electrons
How are the elements within row different?
They have different numbers of valence electrons.
How are elements within row different?
They have different numbers of valance electrons
What is the word for elements with different numbers of neutrons?
ions
What is the term for elements that have different numbers of neutrons?
Isotope
Form of an element having different atomic and number of neutrons?
Isotopes have different numbers of electrons, but not different atomic numbers (numbers of protons) or they'd be different elements.
When the elements combine to form compound how many are there?
Different compounds have different numbers of constituent elements. here is no set number.
A difference in the atomic number of atoms means the atoms are of same or diffierent elements?
Different atomic numbers represent different elements.
