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Electrons have such a small mass relative to protons and neutrons that they are typically not included in calculations of Atomic Mass. The mass of electrons is about 1/1836 of the mass of a proton or neutron, so their contribution to the overall mass of an atom is negligible. Instead, atomic mass is primarily determined by the sum of the number of protons and neutrons in the nucleus of an atom.
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How many protons electrons and neutrons are there in an atom that has an atomic number of 8 and a mass of 15?
Learn that the atomic number means the number of protons. The mass number is the number of protons and the number of neutrons. So if we take the number of protons from the mass number then we get the number of neutrons that are present (mass umber - atomic number = number of neutrons). in this case 15 - 8 = 7. Since you dont mention there is any charge on the atom ill assume that its charge is neutral. For an atoms charge to be neutral then the positive charges from protons must equal the negative charges from electrons and vica versa. So for this to be the case with 8 protons then we must have 8 electrons.
Why do trend happen in atomic radius?
Trends in atomic radius occur due to changes in the number of electron shells surrounding the nucleus as you move across a period or down a group in the periodic table. As you move across a period from left to right, the effective nuclear charge increases, pulling the electrons closer to the nucleus, decreasing the atomic radius. When moving down a group, additional electron shells are added, increasing the atomic radius due to more electron shielding of the outer electrons.
Name the 8 valence electrons for argon?
The 8 valence electrons for argon are located in the 3s and 3p orbitals, with two electrons in the 3s orbital and six electrons in the 3p orbital.
What element has 5 protons and 6 electrons?
The number of protons determines the name of the element: 5 Protons = Boron (B) (just look at the periodic table and the atomic number corresponds to the number of protons the element has)The atomic mass of the element determines the isotope of the atom which is simply Protons (5) + Neutrons (6) = atomic mass (11) so the isotope of this Boron atom is written as 11B (this is short hand the more formal version is written with the atomic number written right below the atomic mass, but i dont know how to do that on the computer)Now the last thing is the charge which is Protons (5) - Electrons (2) = Charge (3+) you subtract the number of electrons because electron's charge is negative one) so the final answer will look like this 11B3+
How many electrons magnesium have?
Magnesium is a metal element. There are 12 electrons in a single atom.
What information must be researched for the atomic mass to be obtained?
well the electrons must be researched and the atomic number and since the protons are equal to the electrons you dont have to go crazy looking for it.i dont know how to find the atomic mass though
How do you count water amount in aquarium?
you dont count you measure it
How can you calculate the number of electrons in an atom?
For a neutral atom they must have equal numbers of protons and electrons. The atomic number is the number of protons in an atom of an element. Find the atomic number by looking at the periodic table of elements.
Atomic number of protons?
protons dont have an atomic number as they are not elements
What are the twenty largest cities in Florida?
i dont know dont care dont count on it.
How do you get population?
you go to Everybodys House and count how many people live in that particular House. and Dont forget to count the hobos, they count to you know even If they dont live in a house.
How many islands of Como are there?
dont know why dont you go count them!
How many protons electrons and neutrons are there in an atom that has an atomic number of 8 and a mass of 15?
Learn that the atomic number means the number of protons. The mass number is the number of protons and the number of neutrons. So if we take the number of protons from the mass number then we get the number of neutrons that are present (mass umber - atomic number = number of neutrons). in this case 15 - 8 = 7. Since you dont mention there is any charge on the atom ill assume that its charge is neutral. For an atoms charge to be neutral then the positive charges from protons must equal the negative charges from electrons and vica versa. So for this to be the case with 8 protons then we must have 8 electrons.
An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of what?
To find the atomic mass, subtract the atomic number (protons) from the mass number (protons + neutrons). Atomic mass = Mass number - Atomic number Atomic mass = 19 - 9 Atomic mass = 10amu So, an atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of 10 atomic mass units (amu).
What is the atomic symbol of phosphorus?
i dont know its symbol it might be pu but the atomic # is 94 and the atomic mass is 244 i dont know its symbol it might be pu but the atomic # is 94 and the atomic mass is 244
What is a counting restriction?
dont allowed to count
What is neon's atomic radius?
i dont know sorry
