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What is the atomic mass and atomic number of Kr in the periodic table?
Atomic number: 36 Atomic mass: 83.8
What is the symbol and number of protons in one atom of krypton?
Kr and 36 protons
Is atomic number the same as mass number?
Atomic number is the number of protons in the atom; atom mass is the total mass of the atom (usually neglecting the mass of the electrons because they have so little).
Why atomic mass is different from the mass numbers?
atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom
Which of these makes up an atom's mass number?
The mass number of an atom is determined by the total number of protons and neutrons in the nucleus of the atom. It does not take into account the number of electrons, which are negligible in terms of contributing to the mass of an atom.
What mass of He contains the same number of atoms as 5.0 g Kr?
To find the mass of He containing the same number of atoms as 5.0 g Kr, we need to use the fact that atoms are indivisible entities. First, determine the number of atoms in 5.0 g Kr using the molar mass of Kr. Then, calculate the mass of He containing the same number of atoms by dividing the atomic mass of He by Avogadro's number and scaling it up to match the number of Kr atoms.
What mass in g does 7.98 moles of Kr have?
7.98 moles of Kr have 668,708 g.
What is the atomic mass and atomic number of Kr in the periodic table?
Atomic number: 36 Atomic mass: 83.8
What mass does 3.99 moles of Kr have?
To find the mass of 3.99 moles of Kr (krypton), you need to multiply the number of moles by the molar mass of Kr. The molar mass of Kr is approximately 83.80 g/mol. So, the mass of 3.99 moles of Kr would be approximately 334.60 grams.
How many moles of Kr are contained in 398 mg of Kr?
The mass of 1 mole of an element is its atomic weight on the periodic table in grams.1g = 1000mgThe mass of 1 mole of Kr = 83.80g KrConvert mg Kr to g Kr.398mg Kr x (1g/1000mg) = 0.398g KrConvert g Kr to mol Kr.0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
What is the symbol and number of protons in one atom of krypton?
Kr and 36 protons
What do you get when you change the mass number of an atom?
You can't change the mass number of an atom because the mass number is the number of protons which is the atom's atomic number I hope this helped :)
What is the sum of protons and neutrons in an atom?
Mass number!:)
Which atom is bigger xe or kr?
The atom of xenon (Xe) is larger than the atom of krypton (Kr) because xenon has more electrons and a larger atomic radius.
Mass number used to calculate the number of?
The mass number is used to calculate the number of nucleons in an atom. It represents the sum of protons and neutrons in the nucleus of an atom. By knowing the mass number, one can determine the approximate atomic mass of the atom.
Is atomic number the same as mass number?
Atomic number is the number of protons in the atom; atom mass is the total mass of the atom (usually neglecting the mass of the electrons because they have so little).
What is the number of neutrons in an atom affects the atomic what?
The number of neutrons in an atom can affect the atomic mass of an atom.
