Chlorine.
You can get the answer easily by adding up all the electrons and finding the element with that atomic number. Example: 2+2+6+2+5=17 and Cl has an atomic number of 17.
Potassium is the group 1, period 4 element on the periodic table. That means that its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s1. This can be shortened to [Ar] 4s1 because argon's electron configuration is 1s2 2s2 2p6 3s2 3p6.
Argon Ar
Cl
The element, indium, is in group 13, period 5 of the periodic table. Thus its electron configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p1. This can also be written as [Kr] 4d10 5s2 5p1 since krypton's electron configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Periodic table can be used to sketch an element. Its configuration can be assumed from its position.
An element's electron configuration determines its location (group) in the periodic table. It tells us how many valence electrons (s and p sublevel).
By the position of an element on the periodic table you can tell how many protons the element has in it by looking at the number above the elements symbol. You can also find the electron configuration with that same number then you can and you can you can also tell if it is f1, f2,f3...s1,s2,d1,d2...
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
The electronic configuration for aluminum is 1s22s22p63s23p1 .
Electron configuration is the arrangement of elements according to their increasing atomic numbers whiles period is the arrangement of elements according to the increasing number of valence electrons.
The electron configuration of gallium is 1s22s22p63s23p64s23d104p1 The shorter version is [Ar]4s23d104p1
Mg
The electron configuration of hassium is: [Rn]5f14.6d6.7s2.
The electron configuration of the element with the atomic number 39 (yttrium) is: [Kr]4d15s2.
Shouldn't you do the homework yourself. Teach your teacher!