S
It contains 10 protons and 10 electrons (no. of protons =no. of electrons in ground state) Number of neutrons=Mass number of element- number of protons =19-10 =9
An atom of fluorine has 9 electrons in total. Electrons are equal to protons when the atom isn't an ion, and the number of protons is also the atomic number of the element, so you just need to know the atomic number to find out the number of electrons or protons.
* Ground state electron configuration:[Ar].3d10.4s2.4p6 so...4s and 4p
what is this called when transfer of electrons from a cloud to the ground
5 valence electrons exist in bromine period, at ground state bromine has 3 valence electrons
8
It contains 10 protons and 10 electrons (no. of protons =no. of electrons in ground state) Number of neutrons=Mass number of element- number of protons =19-10 =9
Cu
An atom of fluorine has 9 electrons in total. Electrons are equal to protons when the atom isn't an ion, and the number of protons is also the atomic number of the element, so you just need to know the atomic number to find out the number of electrons or protons.
An elements atomic number is important because it tells you how many protons are in the nucleus of the atom, and how many electrons are orbiting the nucleus in the ground state.
Rhodium
It tells us that:How many protons the atom hasHow many electrons the atom has (when it is in non-excited, ground state)It identifies the element itself
The electron configuration of 1s22s22p3s1 is not the ground state electron configuration of any element. This configuration contains 8 electrons, which in the ground state would be oxygen. The ground state configuration of oxygen is 1s22s22p4.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
A nobal gas
The atomic number is the number of protons found in one atom of the given element. It is very important for many reasons. Firstly, the element itself depends on the number of protons (If you changed the number protons, then the element would change as well). Secondly, you can discover the amount of electrons using the atomic number (there are the same number of electrons in an element as the number protons, or the atomic number).
I guess Sodium.