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Atomic number.
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∙ 11y ago
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How is the mass number of a atom indicated?
The mass number is the sum of protons and neutrons in the nucleus of an atom.
What atomic nucleus contains 11 protons?
11. The atomic number of any atom equals the number of protons in the atom.
What can be said about the number of protons and electrons in an atom Why?
For any element an atom contains EQUAL number of protons and electrons. An atom has no charge. If any given atom has an unequal number of electrons and protons it is no longer an atom, but an ION.
How can an atom be electrically neutral when its protons change?
Generally an atom contains similar number of electrons and protons. That is why an atom is neutral.
How many protons does C have in it?
An atom's atomic number gives its number of protons. Carbon's atomic number is 6. Thus, carbon contains 6 protons per atom.
What has six protons?
C atom contains 6 protons. Atomic number is six.
What number of protons does carbon atom become unstable?
Carbon atom contains only 6 protons. It is become unstable when number of neutrons are increasing.
If an atom contains 15 protons it must contain?
Any atom should have equal number of protons and electrons. If the atom contains 15 protons then it must contain 15 electrons.
What is the one thing that determines the identity of an atom?
the one thing that gives an atom its identity is the mass number and the atomic number
How many electrons are in a neutral atom of 130 56 ba?
Any neutral atom of barium contains 56 electrons, the counter charge for the 56 protons contained in the nucleus of a barium atom, as indicated by its atomic number, 56.
What is the term for an atom that contains a different number of electrons and protons?
An isotope.
A neutral atom always contains the same number of what?
protons and electrons
