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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 does an element's molar mass tell you about the element?
Molar mass is the mass in grams of 1 mol of subatace, idk if that helps
What is the mass number of this element Pb 82 207.19?
Lead is a metal element. Atomic Mass number of it is 207.
Why does not an atom of an element represent the actual mass of its atom?
The atomic mass of an element is measured not in the mass of the atom, but in the number of grams per mole.
What is the mass number sulfur?
Sulfur is a non metallic element. Mass number of it is 32.
What determines an element's mass?
the mass of protons + the mass of neutrons = mass of the element
What is the density of a unknown solid if it has a volume of 20 cm3 and a mass of 190 g?
density = mass / volume =190 / 20 =9.5g/cm3
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 do you call the mass of an element?
The mass of an element is known as it's ATOMIC Mass.
What the mass percent composition of an element in a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
How is the molar mass of an element determined?
the Atomic Mass in g/ml is the molar mass of the element
The molar mass of an element is the mass of one?
the mole of the element
What is the mass percent composition of an element in a molecule?
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
The nucleus of an atom consists of 8 protons and 6 neutrons The total number of electrons present in a neutral atom of this element is?
Atomic number 76 is Osmium, the densest element. Its atomic mass is 190. Atomic number tells you the number of protons, so 76 protons. Atomic mass tells you the sum of protons and neutrons, so there are 190-76 = 114 neutrons.
For a total mass of water weighing 190 g the mass of H is 21 g and the mass of O is 169 g What is the percent composition of H in water?
21 / 190 x 100% = 11.05%
What is this element atomic mass?
mass of protons + mass of neutrons present in the element (as the mass of electrons is practically negligible)
What is the mass of this element?
Gold is a meta element. Atomic Mass of it is 197.
