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An isotope of an element with a relative atomic mass of 65 amu and 35 neutrons has a charge of 2 plus How many electrons does it have?
28
What is the lightest elementt is period 2?
The lightest element that is in period number 2 is lithium. Lithium is also the solid that is the least dense.
Can the atomic mass of individual atoms of an element vary?
No, the atomic mass of individual atoms of an element does not vary. The atomic mass listed on the periodic table is an average value that takes into account the different isotopes (atoms with different numbers of neutrons) of the element and their abundance in nature. Individual atoms of the same element will have the same atomic mass.
What element in period 2 has a atomic mass of 11?
Short answer: boron. Long answer: any element with 11 protons or less could theoretically have an atomic mass of 11, as the mass = Number of Protons + Neutrons, if you add/take a certain number of neutrons from the atom it will be able to have an atomic mass of 11, but some aren't possible and others are too unstable, and will decay instantly.
What element is in group iii period 2?
It is Boron.
Which element has 2 istotopes with one 10 amu and the other 11 amu?
Boron Atomic mass= 10.81
What element is in period 2 and has an atomic mass of 11?
Boron
What element has 20 electrons and in period 4 and metallic?
Calcium has 20 electrons and has an atomic weight of 40.078 amu. It is in group 2, period 4 of the Periodic Table, and is a soft gray alkaline earth metal.
What element is in period 4 and is metallic and has 20 electrons?
calcium (Ca)
He lightest element in period 2?
Helium is a period 1 element.
What is the atomic mass of hydrogen -1?
Hydrogen is a non meta element. Atomic Mass of it is 2.
What period is the element neon in?
The element neon is in period 2. Classified as a non-metal. :)
What element is located in group 15 and period 2?
The element phosphorous (P) is located in group 15, period 2.
What element is found in group 14 period 2?
what element is found between period 2 and group 14
An isotope of an element with a relative atomic mass of 65 amu and 35 neutrons has a charge of 2 plus How many electrons does it have?
28
What is the lightest elementt is period 2?
The lightest element that is in period number 2 is lithium. Lithium is also the solid that is the least dense.
An element has 2 naturally occuring isotopesIsotopes 1 has a mass of 106.905 amu and a relative abundance of 51.8 percent and Isotopes 2 has a mass of 108.904 amu and abundance of 48.2 percent Find th?
The element is Silver. This site give all the half-lives and isotopes for all of the elements by name <http://www.webelements.com/silver/isotopes.html>
