number of protons

number of protons : 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 .....   More from Wikipedia

  isotopes and atomic mass in this lesson covering atomic structure. Most elements exist in nature as more than one isotope. Isotopes are atoms that have the same number of protons as the element but a different number of neutrons. The number of protons always remains the same, as this number (also known as the atomic number) is what determines the element. Prof. Harman also introduces atomic mass units, or amu's, which are a more convenient unit for describing the very small masses of atoms ...

  Likewise, a group of atoms can remain bound to each other, forming a molecule. An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive or negative charge and is an ion. An atom is classified according to the number of protons and neutrons in its nucleus: the number of protons determines the chemical element, and the number of neutrons determine the isotope of the element. Elocution is the study of formal speaking in pronunciation, ...

Question : I have an example here. Silicon is the element, and it says the number of protons is 14, the number of electrons is 14 and the number of neutrons is 14. Then I have Oxygen and it doesn't give me anything for Protons, Electrons or neutrons. How do I get those three? Also, how do you identify an Isotope in a diagram?

Answer : the atomic number of and element eg. oxygen(8) carbon(6) is the number of protons and the number of electrons if the element is uncharged. the atomic mass is the number of protons + the number of neutrons (electrons aren't massive enough)...   More from Yahoo Answers

Question : Determine the total number of protons and electrons in the following ions. For the positive ions, predict the formula of the simplest compound formed between each positive ion and the oxide ion, O2-. For the negative ions, predict the formula of the simplest compound formed between each negative ions and the Calcium ion, Ca2+. (Type your answer using the format H2SO4 for H2SO4.) (a) Al3+ protons? electrons? ion? (b) Ca2+ protons? electrons? ion? (c) I- protons? electrons..

Answer : a) 13 protons , 10 electrons , cation b)20 protons, 18 electrons, cation c)53 protons, 54 electrons, anion d) 19 protons, 18 electrons, cation Cations are + charged ions and anions are - charged ions. Protons are on the periodic table next to the symbol. Charge is the difference between electrons and protons. Cations have more protons, anions more electrons...   More from Yahoo Answers

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