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What are the first electrons to be removed when d-block elements form ions?
Wiki User
∙ 13y ago
the 4s electrons are removed first.
Wiki User
∙ 13y ago
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Which of the first 20 elements has the most unpaired electrons?
Nitrogen = 3 unpaired electrons.
What do elements in group 2 have in common?
they all have 2 electrons in the first shell.
If the first energy level is complete with two electrons then what has two elements?
the atom
Where do you find the number of valence electrons for elements for chlorine?
Valence electrons are the electrons found in the outer shell of an atom. In each vertical row of the table from 1 to 2 and 13 to 18, there is a certain number of valence electrons that is common to all of the elements in that row. In the first vertical roe there is one valence electron. In the second, there is two. You will skip rows 3- to 12 because those elements are transition metals and each one of them varies. When you get to row 13, it has 3 valence electrons. Row 14, 4 electrons, and so on. So for chlorine, which is in row 17, there will be 7 valence electrons.
How many electrons can the first shell hold?
The first electron shell, or energy level only holds 2 electrons. It is the smallest and closest energy level to the atom's nucleus. Hydrogen and helium are the only two elements to have electrons in just the first shell.
How does the Bohr model of the atom relate to the Periodic Table?
The Bohr model of the atom places electrons in orbits or "shells." Elements in the first period only have electrons in the first shell. Elements in the second period have electrons in the first two shells. Elements in the third period have electrons in the first three shells, and so on.
Which of the first 20 elements has the most unpaired electrons?
Nitrogen = 3 unpaired electrons.
How many electrons does carbon have in its first electrons shell?
Carbon has 2 electrons in it's first electron shell. All elements except hydrogen do.
Are there the same number of electrons in the first four elements of the alkali family?
They all have a different electrons
Does the periodic table explain the shell model or does the shell model explain the periodic table?
The shell model explains the organization of the periodic table. The elements in the first period have electrons in the first shell; the elements in the second period have electrons in the first two shells; the elements in the third period have electrons in the first three shells; and so on.
What are the parts of Elements?
At the first level, protons, neutrons, and electrons.
What do elements in group 2 have in common?
they all have 2 electrons in the first shell.
If the first energy level is complete with two electrons then what has two elements?
the atom
What is the number of electrons in the 1st energy level of magnesium?
All elements except hydrogen have two electrons in the first energy level.
Which element has 5 electrons?
Well i think that will be boron according to the first 20 elements.
What first three elements have six electrons in their outer most energy level?
oxygen, sulphur and selenium
What elements on the periodic table has six valence electrons?
Oxygen, with a electron number of 8 there are two electrons on the first orbit ring and six an the outer ring(shell) those are the valence electrons
