no, it would change its charge not its mass.
Adding electric current to separate hydrogen from oxyge.
The element with 1 electron in period 1 would be hydrogen.
Hydrogen has only one electron on one shell.
Hydrogen and fluorine would form a covalent bond by sharing electrons. Hydrogen provides one electron, while fluorine provides seven electrons to complete their octet. This sharing of electrons creates a stable hydrogen fluoride molecule.
adding one more electron
No, adding hydrochloric acid (HCl) to magnesium (Mg) and observing the resulting chemical reaction is a chemical change, not a physical change. The reaction produces hydrogen gas and magnesium chloride, with new substances formed.
None. A hydrogen atom has one proton and one electron (no neutron). Removing the electron leads to just a proton, no electrons.
Yes.
hydrogen can not be ionized. there are not enough protons or neutrons in the neucleus to support an extra electron for a negative ion. A hydrogen atom is merely a proton orbited by an electron, meaning that if it were to lose it's single electron, it would just become a single proton and a single electron. nothing more.
Adding more hydrogen would cause more acidity thus a lower pH value.
Hydrogen only has 1 electron. However it can share electron with other elements. 1s can hold a max of 2 electrons, in hydrogen case it would be 1 ( its on electron) and then 1 more IF it is sharing with another element, but it won't go higher than that.
There is only ONE electron in the hydrogen atom . Here is a table of hydrogen isotopes. You will notice in all three cases there is only one proton and one electron. protium ([1/1]p) ; 1 proton, 0 neutrons , 1 electron deuterium ([2/1]d) ; 1 proton, 1 neutron , 1 electron tritium ([3/1]t) ; 1 proton, 2 neutrons , 1 electron NB helium ([4/2]He) ; 2 protons, 2 neutrons, 2 electrons.