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Hydrogen is given atomic number 1 because it has the lowest Atomic Mass of any element.
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What is the mass number of hydrogen?
The mass number of the most common hydrogen isotope, Hydrogen-1, is one
Why is hydrogen H plus?
Hydrogen (H) is not the same as the Hydrogen ion H+. H+ is the term for a hydrogen atom that has lost its electron. Since the number of electrons is not equal to the number of protons, it is called an ion. Since the hydrogen atom is comprised of one proton and one electron, the hydrogen ion H+ is simply a proton.
What is the metalloid element with the fewest number of protons?
If you look at the periodic table, the atomic number denotes the number of protons in the element. For example, the first element on the table is hydrogen, and it has one proton (the fewest). Element number two is helium, and it has two protons, etc.
The ion that is a single proton?
H-1. Hydrogen has only one proton and electron; if this electron is removed a hydrogen ion is formed - effectively a proton.
Why is oxidation number 3 for nitrogen?
Because nitrogen forms a compound with hydrogen called anhydrous ammonia consisting of one nitrogen atom and three hydrogen atoms. Since hydrogen has an oxidation number of one, nitrogen must have an oxidation number of three to make a "neutral" molecule.
Can hydrogen atoms have more than one proton?
No. Elements are given their names (like "Hydrogen" or "Gold") solely on their number of protons. If a Hydrogen atom had any other number of protons than one, it would not be a Hydrogen atom.
When an acid ionizes in water what happens to the number of hydrogen ions?
the number of hydrogen ions (charges) given by the acid will be the same as the anions
Determine the number of hydrogen ions when you are given 2 moles of water?
4 moles of hydrogen atoms
What is the mass number of hydrogen?
The mass number of the most common hydrogen isotope, Hydrogen-1, is one
What is the atomic number for H?
The atomic number for Hydrogen is 1 (one). Hydrogen atoms have one proton and one electron.
What is hydrogen's number of neutrons equals mass number - atomic number equals?
A hydrogen atom has one proton, one electron and '''zero''' neutrons. Rephrased, the question is: Hydrogen's number of neutrons equals mass number - atomic number.
Where was hydrogen origianally found?
Hydrogen is the chemical element with atomic number 1, symbol H. In 1783 it was given its name when it was discovered that water is produced when hydrogen is burned.
Why is it impossible for the atomic number of element to be greater than its mass number?
The atomic number of an element is the number of protons in the nucleus of that element (and in any isotope of that element). The mass number of an element is the number of protons plus the number of neutrons in the nucleus of that element (and that number will differ for each isotope of that element). In any given element (save hydrogen) there are always one or more neutrons in the nucleus. As the atomic number is just the number of protons, it will always be less than the number of protons plus the number of neutrons. Always. The "outcast" is hydrogen. Most hydrogen has just a single proton in the nucleus. That means for those atoms of hydrogen, the atomic number (number of protons) and the mass number (number of protons plus the number of neutrons) will be one. (Recall that there are no neutrons in "regular" hydrogen.) Hydrogen does have two other isotopes. One has one neutron and the other has two neutrons. The atomic number for each of those two isotopes is still one, but their mass numbers will be two and three, respectively.
How does isotopes hydrogen-1 and hydrogen-2 differ?
Isotopes have different number of neutrons, in the given isotopes, there are 0 and 1 neutrons respectively.
Atomic number of an atom is equal to the number of?
The atomic number of an atom is the number of protons in that atom. For example, the atomic number of hydrogen is 1 because one hydrogen atom have one proton.
Hydrogen-1 and Hydrogen-2 are What of one another?
They are isotopes of one another. The numbers indicate the mass number, which is the product of the number of neutrons and the number of protons. Since they're both hydrogen atoms, we know that they both have one proton. However, 1H has no neutrons while 2H has one neutron. Atoms of the same element with a different number of neutrons are called isotopes.
Are hydrogen 1 and hydrogen 2 ions?
No, they are isotopes. An ion is an atom that has an electric charge because it has gained or lost one or more electrons. An isotopes is a variant of a given element with a different number of neutrons, which does not affect the charge.
