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How does an atom of sodium has a larger mass than a atom of neon. how is this possible when neon has so many more valence electrons?
Wiki User
∙ 6y ago
sodium has more protons and neutrons. electrons have practically no mass, valence electrons are just outer orbital electrons. sodium has 11 protons, 11 electrons, and 12 neutrons. Mass is 23. neon has 10 protons, 10 electrons, and 10 neutrons. Mass is just 20. The neon atom has 10 protons and 10 neutrons for a mass number of 20. The sodium atom has 11 protons and 12 neutrons for a mass number of 23. The number of valence electrons has no bearing on mass number or atomic weight.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoThe neon atom has 10 protons and 10 neutrons for a mass number of 20. The sodium atom has 11 protons and 12 neutrons for a mass number of 23. The number of valence electrons has no bearing on mass number or atomic weight.
Wiki User
∙ 11y agoThe mass of an atom is determined by the amount of protons and neutrons in the nucleus. Since sodium has 11 protons and 11 neutrons and neon has 10 protons and 10 neutrons, sodium has a larger mass.
Wiki User
∙ 7y agoAtomic number of Neon= 10 = 10 protons = 10 electrons. Atomic number of Sodium= 11 = 11 protons = 11 electrons. Therefore, sodium has more electrons.
Wiki User
∙ 6y agoFor the atomic weight the number of protons and neutrons is important.
Wiki User
∙ 11y agoTheir atomic weight is different
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Rank the element carbon sodium calcium and iodine in order of decreasing number of valence electrons?
The order is: Iodine (7 valence electrons) Carbon (4 valence electrons) Calcium (2 valence electrons) Sodium (1 valence electron)
What element has more valence electrons than oxygenfewer valence electorns than neon more protons than sodium but fewer protons than argon?
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
How many valence electrons does sodium 24 have?
Every sodium atom has only one valence electron.
Are valence electrons paired or unpaired?
They can be both. In sodium there is a single unpaired valence electron. In magnesium there are two valence electrons and they are paired.
What element has more valence electrons that oxygen fewer valence electrons that neon more protons than sodium but fewer protons than argon?
there is no such element
Calcium and Sodium have very nearly the same radii?
No sodium has 11 electrons which means its valence are in the 3s2 orbit while Calcium has 20 electrons its valence electrons are in the 4s2 orbit which is much larger in terms of atomic radii
How is it possible that sodium has more volume than neon when neon has more valence electrons?
It's possible because sodium has 11 protons and electrons but neon bass 10 protons and electrons.
The valence electrons of which element has the highest energy hydrogen lithium sodium or potassium?
To determine this look at the periodic table. The larger the atom, the farther its valence electrons are from the nucleus. Therefore, potassium's valence electrons have the highest energy.
How many valence electrons has sodium?
Sodium has one valence electron.
Does sodium have three valence electrons?
No, sodium has 1 valence electron, not 3.
how number of valence electrons sodium have?
A sodium atom has one valence electron.
What element has more valence electrons than oxygenfewer valence electrons than neon more protons than sodium but fewer protons than argon?
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
Rank the element carbon sodium calcium and iodine in order of decreasing number of valence electrons?
The order is: Iodine (7 valence electrons) Carbon (4 valence electrons) Calcium (2 valence electrons) Sodium (1 valence electron)
What is larger radius a sodium ion or chloride ion?
A chloride ion has a larger radius than a sodium ion, because the chloride has an additional complete valence shell of electrons compared to a sodium ion, but a sodium atom has lost the only electron in this valence shell that the sodium atom ever included to form a sodium ion.
What element has more valence electrons than oxygenfewer valence electorns than neon more protons than sodium but fewer protons than argon?
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
A sodium atom with eleven electrons has how many valence electrons?
It has only 1 valence electron
Why sodium and magnesium valency 1?
magnesium has 2 outer electrons, its valence is 2+ sodium has 1 outer electrons, its valence is 1+
