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I noticed that the order of the elements in the periodic table are organised in a efficient and smart manner (by the number of electrons)

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The elements of the periodic table are arranged in groups and periods. The groups are vertical columns and the group number tells you the number of electrons in the valence shell. The periods are horizontal rows, and in each period the atomic numbers increase from left to right.

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The periodic table starts with then least amount of elements and slowly goes up in ascending order. The arrangement is such that the columns tell us how many valence electrons there are.

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The periodic table is organised in such a way that the group numbers (Vertical) symbolise the number of valence electrons, or electrons in the outermost shell. The period numbers (Horizontal) symbolise the number of orbits in the atomic structure.

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The periodic table is made in a way where the group number is the number of valence electrons and the period numbers is the number of orbits in the structure

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I noticed that the group shows us the number of valence electron( electron on the outer most shell) and the period shows the number of orbitals

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The group number shows the amount of valence electrons on the outer shell and the period shows the number of electron shells.

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I noticed that depending on the atomic number, it determines how many protons there are in the outer shells.

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The periodic table was arranged so the groups determine the number of valence electrons, and the periods determine the number of electron shells.

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So the periodic table is made such that it starts with the element with the least number of protons and slowly build to get higher and higher as it goes left to right. The columns in the table tell us how many valence electrons there are and the rows tell us how many shells there are for each specific element. Each element also has it's atomic mass which gives you the number of protons, neutrons and electrons.

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The elements are arranged so that it shows you the elements with the least amount of electrons , protons and neutrons to the elements that have the most electrons protons and neutrons. It is also arranged so that the columns tell you how many valance electrons a element has and rows tell you how many shells it has.

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The elements are arranged in groups and periods. Groups vertical columns , periods are horizontal rows. The group arrangements show how many valence electrons there are (electrons on the outer shell). The period arrangements show how many number of shells the elements has.

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The group number shows the number of valence electrons that are on the outer shell, and the period
shows the number of shells.

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Mendeleev has carefuly arranged the elements into the periodic table based on the number of electrons and his understanding of the relationship of a specific element in the table. The group number tells the number of valence electrons while the period no. shows the number of shells.

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I learned that all those years ago, people figured out how to plot electrons in an atom. I also noticed haw some atoms don't use all of their shells. A line in the video also struck me, it was that an atoms electron does not have a defined space to which it is confined to, which means an atom's electron could be at the other end of the universe. It made me think if I am here on earth but my electrons are somewhere else beyond the stretches of the human eye.

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I learnt how to draw the electrons based on how many there are and the relationship between the group number and the number of electrons .

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The groups determine the amount of valence electrons an atom has on their outer shell of the element, and periods determine the amount of shells it has

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The group number will tell you how many valence electrons the atom has. The period number shows us how many shells the electron has

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The group number tells you how many electrons are in the outer shell (valence electrons)

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The group tell you how many valence electrons the atom has. And the periods tell you how many shells the atoms bohr structure has.

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The group number tells how many electrons there are in the 3rd shell (outer shell). The period number tells how many shells there are

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The group no. tells the number of electrons in the outer shell and the periods are arranged in a increasing atomic no. manner from left to right .

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The group number tells us how many electrons are there in the outer shell. The period number tells us how many shells are there in the atom. The number of electrons in the outer shell increases as you move to the right. The number of shells increases as you move down the periodic table.

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The group number determines how many electrons the atom has in its outer shell, while the period number determines the number of shells.

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The electronic structure of an element increases by 1 from left to right.
H: 1,   He: 2.
Li: 2,1 Be: 2,2 B: 2,3 C: 2,4 N: 2,5 O: 2,6 F: 2,7 Ne 2,8 Etc, Etc.

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The number of the group is also the number of valence electrons                 ( electrons on the outermost shell).
The number of the period is the number of shells.

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The group number of an element tells us the amount of valence electrons the element has. Also, the number of electrons in an atom arranges itself into a pattern of having 2 electrons in shell 1, 8 in shell 2, 8 in shell 3 and 18 in shell 4. The number of electrons in each shell seems to be the same as the number of elements in it's relative period.

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The group number is indicative f the number of electrons in the last shell, the fewer the valence electrons and the farther they are from the nucleus the more reactive the element.

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The periodic table is organised into periods and groups. The elements in each group have the same number of valence electrons. There is also a constrained number of electrons each energy level can hold, the first one can hold a maximum of two, the second eight and the third eight/eighteen.

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Group number - # of valence electrons
Period - # of shells
Max number of electrons per shell:
1) 2 electrons
2) 8 electrons
3) 8 electrons

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The is a maximum number of 2 electrons in the first shell, 8 in the second, 8 in the third, and 18 in the fourth. The formula for the number of electrons in an energy shells is given by the formula 2(n^2), n representing the shell, but this is for IB.

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The periodic table is organised by periods and groups, all elements have something in common with the other elements in the group or period.

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Arshia                                     The group number tells us the number of valence electrons and the period tells us the number of shells

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Arshia                                     The group number tells us the number of valence electrons and the period tells us the number of shells

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Group number determines number of valence electrons of the atom. Period determines number of shells of the atom.

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There is a limited number of electrons in each energy level. The first shell can hold 2; the second holds 8; and the third, up to 18 electrons. The period number indicates the number of electron orbitals whereas the group number describes the number of valence electrons in an element.

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This is what I noticed:
*The group number=valence electron of the element.
*The period number=number of orbit(s)/shell(s) outside the nucleus.

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Maximum Number of Electrons:
First Shell: 2
Second and Third Shells:8
Periods: Number of Shells
Groups: of Valence Electrons

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the elements on the periodic table are arranged in such a way so that each (vertical) group contains the same number of valence electrons

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Periods define number of shells while groups show electrons in that shell