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What is the atomic number of He plus?
The atomic number of helium (He) is 2. When He gains one electron to become He plus, it becomes an ion with a net charge of +1, but the atomic number remains the same as 2.
Why can't the mass number be smaller than the atomic number?
The mass number has to be greater then the atomic number because the mass number is the protons plus the neutrons. If you were to take 10-12 you would get a negative number of 2 and there can't be a negative number of neutrons!
What is an atomic number and what is a mass number?
Atomic number is the number of protons in the nuclei of the atoms of a given element. The elements on the periodic table are arranged according to increasing atomic number. For example, carbon's atomic number is 6, so it has 6 protons in the nuclei of all of its atoms.Mass number is the number of protons and neutrons in the nuclei of the atoms of a particular isotope of an element. For example, carbon-12 is an isotope of carbon that has 6 protons and 6 neutrons in the nuclei of its atoms. However, carbon-14 is an isotope of carbon that has 6 protons and 8 neutrons in the nuclei of its atoms.
What is the atomic number of f plus the atomic number of Na equals the atomic number of this element?
The atomic number of F (fluorine) is 9 and the atomic number of Na (sodium) is 11. Adding them together gives 20, which is the atomic number of calcium (Ca).
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 atomic number for H plus?
The atomic number for hydrogen (H) is 1. When hydrogen loses an electron, it becomes a hydrogen ion with a positive charge, denoted as H+. This means the atomic number for H+ remains 1 since it still has one proton in its nucleus.
What is the atomic number and the atomic mass of lithium?
Hydrogen has 1 as its atomic number. That's because it has one proton in its nucleus. Hydrogen has three isotopes. Each isotope has one proton in its nucleus (naturally, because that's what makes it hydrogen). Atomic mass is the number of protons plus the number of neutrons in an atom's nucleus. Let's look at each isotope of hydrogen. "Simple" hydrogen has only the 1 proton in its nucleus. It's atomic number is 1 and its mass number is 1 (the 1 proton plus zero neutrons). Heavy hydrogen has 1 proton and 1 neutron in its nucleus. It's atomic number is 1 and its mass number is 2 (the 1 proton plus 1 neutron). Heavy, heavy hydrogen has 1 proton and 2 neutrons in its nucleus. It's atomic number is 1 and its mass number is 3 (the 1 proton plus 2 neutrons).
Does atomic number equal atomic mass?
No, the atomic number and atomic mass are different. Atomic number represents the number of protons in an atom's nucleus, while atomic mass is the average mass of an atom of an element, taking into account the number of protons and neutrons.
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.
What is the atomic number and mass number of deuterium 2H?
The atomic number of deuterium (2H) is 1, as it has one proton in its nucleus. The mass number of deuterium is 2, which is the sum of the protons and neutrons in its nucleus (1 proton + 1 neutron = mass number of 2).
Is the mass number of an atom equal to the atomic number?
Only if the atom is hydrogen-1! The mass number of the atom is equal to the sum of the numbers of protons, which is the same as the atomic number, plus the number of neutrons. The only non-radioactive atom without neutrons is hydrogen-1.
What is the atomic number of F plus the atomic number of Na?
The atomic number of fluorine is 9.The atomic number of sodium is 11.
What is carbon's atomic number and atomic mass?
(Relative is the relative to hydrogen bit) Relative Atomic Mass:12 Proton number:6 The actual mass depends on how much carbon you have.
What does mass do?
The Atomic Mass is equal to the number of protons plus neutrons. So if you know the atomic number then you can find out the number of neutrons Atomic # is the amount of Protons or Electrons Atomic Mass- Number of protons plus neutrons Atomic Mass-Atomic Number = Amount of neutrons
What is the atomic number of F plus the atomic number of An equals the atomic number of this elements?
There is no element whose symbol is An.
What do we get while subtracting the atomic number from the atomic mass number?
We get the number of neutrons. Atomic number is the number of protons, and atomic mass is protons plus neutrons.
What do you get if you plus the atomic number and the atomic mass?
a number having no physical meaning.
