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The nucleus of an atom contains _________. a.

The nucleus of an atom contains _________. a. Electrons b. Protons neutrons & electrons c. Protons & neutrons d. Protons & electrons

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It contains "Protons and Neutrons" so the solution for your question is "C".

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Posted on Jul 09, 2010


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How are protons organized ?

Atomic protons? The nucleus of the atom of each stable element has a certain number of protons, and except for hydrogen, also neutrons. These numbers are what differentiate the elements and give them properties, whether gaseous, metallic, alkaline, reactive or inert. Protons have a positive electrical charge.

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How are protons organized?

Atoms are the basic building blocks of everything around us. They come in different kinds, called elements, but each atom shares certain characteristics in common. All atoms have a dense central core called the atomic nucleus. Forming the nucleus are two kinds of particles: protons, which have a positive electrical charge, and neutrons, which have no charge. All atoms have at least one proton in their core, and the number of protons determines which kind of element an atom is. For example, an oxygen atom has 8 protons. If you were somehow able to change the proton number of this atom to 7, even if everything else remained the same, it would no longer be an oxygen atom, it would be nitrogen. For this reason, we list the different elements by their proton, or atomic, number. The periodic table of elements is a chart of all of the elements that have been discovered so far, in order by their atomic number.

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Main article: Proton decay Protons are observed to be stable and their theoretical minimum half-life is 1036 years. Grand unified theories generally predict that proton decay should take place, although experiments so far have only resulted in a lower limit of 1035 years for the proton's lifetime. In other words, proton decay has never been witnessed and the experimental lower bound on the mean proton lifetime (2.1×1029 years) is put by the Sudbury Neutrino Observatory.[5]

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1a11b43084f71df3683387ac7281c27b.png where
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Hope i helped you.

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for more info on atoms click here


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