Answer:you observe the light?
Explanation:
Answer:
Protium
Explanation:
Isotopes -
For some elements , there are various forms possible , which have different number of neutron and same number of protons , are referred to as the isotopes .
The three isotopes possible for the element hydrogen are -
Protium , Deuterium and Tritium .
Where ,
- Protium has one electron , one proton and zero neutron.
- Deuterium has one electron , one proton and one neutron.
- Tritium has one electron , one proton and two neutron.
The most abundant isotope observed is Protium , with 99.98% abundance.
Answer is: group 17 on the periodic table.
Group 17 (halogens) elements are: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I).
They are very reactive and easily form many compounds.
Fluorine and chlorine are in gaseous state, bromine is liquid and iodine is in solid state in room temperature.
Halogens need to gain one electron to have electron cofiguration like next to it noble gas.
For example, fluorine has 9 electrons and it gain easily one electron in chemical reaction to have electron configuration like noble gas neon (Ne) with 10 electrons.
Answer:
The chlorine atom (or atoms) is covalently bonded by a shared pair of electrons to the other element.
Explanation:
