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THE ELEMENT WHICH HAVE Atomic Mass 78.96 IS SELENIUM OF 6TH GROUP WITH ATOMIC NUMBER 34 AND SYMBOL (Se)
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The mass number of an element is the number of?
Mass number is the atomic mass of a particular isotope (apex chem 5.3)
What is the mass number of this element Pb 82 207.19?
Lead is a metal element. Atomic Mass number of it is 207.
What is an isotope that has the atomic number 190 and mass number 78?
There is no such isotope. The highest atomic number is 118. The question is erroneous. The isotope platinum-190 has the atomic number 78, the mass number 190 and the atomic mass 189,959 932(6).
What element has a mass number of 197?
Hafnium is the element that has a mass number of 179. Its color is silver, its structure is hexagonal, while the number of neutrons is 106.
What is the mass number sulfur?
Sulfur is a non metallic element. Mass number of it is 32.
What is the number of protons for platinum?
Platinum is a metal element. Atomic mass of it is 195.08.
What is the atomic number and atomic mass of platinum?
platinum Pt Atomic number 78 Standard atomic weight: 195.084 Density (room temperature) 21.45 g·cm−3
How many electron are in this element 193Pt?
An estimated 117 neutrons. This can vary as platinum has different isotopes of different mass thus resulting in varying number of neutrons.
Why is platinum give the atomic number 78?
Platinum is a non metal element. Atomic number of it is 78.
What is the mass number of the element vanadium?
Vanadium is a metal element. Mass number of it is 51.
What is the element with the mass number of 64?
Copper is a metal element. Mass number of it is 64.
What is the mass number for the element Magnesium?
Magnesium is a metal element. Mass number of it is 24.
What element has mass number 52?
Chromium is a metallic element. Mass number of it is 52.
What is the element with mass number 64?
Coper is a metal element. Mass number of it is 64.
What element has a mass number of 85?
Rubidium is a metal element. Mass number of it is 85.
What is the mass number of the element Na?
Sodium is a metal element. Mass number of it is 23.
What is the complete symbol of an element that has 78 electrons and 117 neutrons?
Assuming this is an atom, 78 electrons means there are 78 protons, so this is platinum. The mass number will be 78 + 117 = 195 so the complete symbol will be 195/78 Pt where I've used the / to represent that 195 is a superscript and 78 is a subscript.
