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...In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an atom of neutral charge, atomic number is equal to the number of electrons. Read full entry
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- Periodic Table of Elements at Bing™
- Sort Elements by State, Formation, & More. Try Visual Search Today.
- www.Bing.com/VisualSearch
- 1.Atomic number - Wikipedia, the free encyclopedia
- See also: List of elements by atomic number ... Hence it is the atomic number alone that determines the chemical properties of ...
- http://en.wikipedia.org/wiki/A
tomic_number
- 2.atomic number: Definition from Answers.com
- atomic number n. ( Symbol Z ) ( Abbr. at. no. ) The number of protons in an atomic nucleus. ... When specifically written, the atomic number is placed as a ...
- http://www.answers.com/topic/a
tomic-number
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Atomic number?
does the atomic number tell
you the amount of protons?
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yes, it does. |
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How do chemists get the atomic Maybe it's from the atomic
weight? Maybe someone thinked
of a formula stating that the
atomic number came from the
atomic weight with this
formula:
Legend: A.W. is atomic weight
while A.N. is atomic number.
A.W. (cancel all decimal
places)
divided by:
2
= Atomic number.
I tried this, my own
"experimental" formula whether
it works. It worked accurately
with oxygen and carbon, but in
other elements, (try with
krypton) it won't work. The
quotient wasn't the atomic
number in the Periodic Table
of Elements, and I think the
reason is that Krypton and
other unequal A.N. elements
belong in different groups are
because they naturally need to
be in a certain family or
group. When I used the formula
with krypton, it had the A.N.
of 42, in the metals.
Unfortuantely, krypton SHOULD
belong to the non-metals.
I am searching for the truth
if this formula is to be true.
I have to prove this quick
though, I need help in my
never-ending researching.
Thanks!
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chemists now get the atomic number of an element by looking at a periodic table. they originally got it by counting the number of protons in an atom.. |
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What are the atomic number and What are the atomic number and
atomic mass of the element
formed when 218Po emits a beta
particle?What are they if the
polonium emits an alpha
particle?
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The Atomic Number would be: 85 and the atomic mass would be 218.... For a Beta Particle! The Atomic Number would be: 82 and the atomic mass would be 214.... For an Alpha Particle! and the new element would be Ra! Hope that helps! |
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