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What element has more valence electron that oxygen few valence electrons than neon more protons than sodium but fewer protons than argon?
The element described has more valence electrons than oxygen but fewer than neon, more protons than sodium but fewer than argon. This element is magnesium, which has 12 protons, 12 valence electrons (2 more than oxygen but 2 less than neon), and is situated between sodium and argon on the periodic table.
What element has 4 protons and 2 electrons?
Beryllium (Be) has 4 protons and 2 valence electrons.
How many valence electron does Ca have?
Calcium's atomic number is 20. It therefore has 20 protons and 20 electrons. Since calcium is a group 2 element, 2 of those electrons are valence electrons.
Element that has more valence electrons than oxygen fewer valence electrons than neon more protons than sodium but fewer protons than argon?
The element in question is magnesium. It has 12 protons (more than sodium and less than argon), 2 more valence electrons than oxygen (which has 6), and 8 fewer valence electrons than neon (which has a full valence shell with 8 electrons).
What hasw 7 valence electrons and has 2 more protons than phosphorus?
The element with 7 valence electrons and 2 more protons than phosphorus is sulfur. Sulfur has 16 protons (2 more than phosphorus), placing it in the 16th position on the periodic table and giving it 6 valence electrons plus 2 in the 3d shell.
The name of the element that has 2 valence electrons and 12 protons?
Magnesium
What element has more valence electron that oxygen few valence electrons than neon more protons than sodium but fewer protons than argon?
The element described has more valence electrons than oxygen but fewer than neon, more protons than sodium but fewer than argon. This element is magnesium, which has 12 protons, 12 valence electrons (2 more than oxygen but 2 less than neon), and is situated between sodium and argon on the periodic table.
What element has 4 protons and 2 electrons?
Beryllium (Be) has 4 protons and 2 valence electrons.
How many valence electron does Ca have?
Calcium's atomic number is 20. It therefore has 20 protons and 20 electrons. Since calcium is a group 2 element, 2 of those electrons are valence electrons.
Element that has more valence electrons than oxygen fewer valence electrons than neon more protons than sodium but fewer protons than argon?
The element in question is magnesium. It has 12 protons (more than sodium and less than argon), 2 more valence electrons than oxygen (which has 6), and 8 fewer valence electrons than neon (which has a full valence shell with 8 electrons).
What has 4 protons and 2 electrons?
Beryllium (Be) has 4 protons and 2 valence electrons.
What hasw 7 valence electrons and has 2 more protons than phosphorus?
The element with 7 valence electrons and 2 more protons than phosphorus is sulfur. Sulfur has 16 protons (2 more than phosphorus), placing it in the 16th position on the periodic table and giving it 6 valence electrons plus 2 in the 3d shell.
What is the number of valence electrons the element helium has?
Helium has 2 electrons (total of 2 electrons and 2 valence electrons)
How many valence electrons are in an atom of magnesuim?
There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.
How many valence electrons are in zirconium atom?
protons:40electron:40neutrons: can vary, however, the main isotope has 80
The number of valence electrons increases with increase in what from the beginning to the end of period 2?
The number of valence electrons increases with increase in atomic number from the beginning to the end of period 2. The maximum number of valence electrons possible in any outermost shell is 8.
What is the valence number for helium?
He has 2 valence electrons. Look on a periodic table. It will show He only has 2 protons and the number of protons and electrons is equal. It is an exception to the rule of group numbers corresponding to valence numbers.
