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The number of shells increases. Moving down the Periodic Table leads an investigator to heavier elements, that is, elements with bigger atomic numbers. That means larger nuclei and more electrons, which will have to make themselves homes out in the electron cloud. More shells will be set up to provide places for those electrons to hang out.

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15y ago
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13y ago

If you move directly down a column, the number of energy levels or shells increases.

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11y ago

The number of valence shell (outermost level) electrons generally increases with the group number, and does not change based on the period.

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13y ago

The number of shells increases by 1 as one moves from one period to the next of a periodic table column.

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11y ago

Down a group, the valence electrons (electrons in the outermost energy level) remain the same.

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Q: What happens to the number of electrons in the outer energy level as you go down the periodic table?
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Related questions

How is the number of energy levels in an atom related to the periodic number?

The period number is the same as the highest energy level containing electrons for the atoms in that period.


What are electrons on a periodic table?

Periodic table lists the elements in the increasing order of atomic number. Atomic number = Number of protons = Number of electrons


Period in chemistry?

A period is a horizontal row on the periodic table of the elements. There are seven periods on the periodic table. Each period corresponds to the highest energy level that contains electrons. For example, the elements in the first period have electrons in the first energy level, which is the only energy level available; the elements in the second period have their highest energy electrons in the second energy level; the elements in the third period have their highest energy electrons in the third energy level, and so on.


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Atomic Number Number of Protons and Electrons (Atomic Number) Atomic Mass General electronegativity, radius, and ionization energy based on the position of an element on the Periodic Table.


What energy state do electrons automatically fill?

As the periodic table of the elements is built up by adding the necessary electrons to match the atomic number, the electrons will take the lowest energy consistent with the Pauli exclusion principle.


Which group in the periodic table has a stable number of electrons in their outer energy levels?

noble gases or group 1


What does the period number tell you?

It tells you the number of cations in the outer energy level of the element's atomic mass


How many electrons does a nitrogen atom have in the outermost energy?

5, it is the number of valance electrons determined by the roman numeral over the group in the periodic table of elements


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What do you notice about the energy levels in an atom of an element and the period the element is in?

the period number tells which is the highest energy level occupied by the electrons


What is the number of electrons in a neutral atom of an element on an periodic table?

There is none, but a neutral atom is called a neutron. There is no neutral element.


What is a colunm in the periodic table?

In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.