Does chlorine have 2 energy levels?
Chlorine has 17 electrons. The n=2 level can hold up to eight electrons so the next 8 electrons will go in the n=2 level. The remaining 7 electrons can go in the n=3 level since it holds a maximum of 8 electrons. The electron arrangement of chlorine is (2, 8, 7).
How many energy levels are in chlorine?
For example, since hydrogen (H) is in group 1, it has 1 electron in its outer energy level. Chlorine (Cl), which is in group 17, has 7 electrons in its outer energy level and is one electron short of having a “full” outermost energy level.
What is the main energy level of chlorine?
third energy level
The highest energy level in which you would find electrons in a ground state chlorine atom is the third energy level.
What does the 2 in chlorine indicate?
The 2 in front of 2Cl just means that there are 2 single chlorine ions. These ions are NOT bonded to each other. The 2 written in Cl2 means that there are two chlorine atoms covalently bonded to form a chlorine molecule.
How many pairs of electrons does chlorine have?
Each chlorine atom now has an octet. The electron pair being shared by the atoms is called a bonding pair ; the other three pairs of electrons on each chlorine atom are called lone pairs.
How many electrons can occupy a filled 2nd energy level?
8 electrons
Explain that the second energy level can only have 8 electrons so the next electron in sodium has to be on the next (third) level.
What element contains a full second energy level?
After the first energy level contains 2 electrons (helium), the next electrons go into the second energy level. After the second energy level has 8 electrons (neon), the next electrons go into the third energy level.
Which level has the highest energy?
trophic level
Since the source of energy is the sun, the trophic level representing producers (plants) contains the most energy.
How many electrons can the second energy level hold?
Why is chlorine so reactive?
Yes, chlorine is more reactive than bromine because the chlorine atom has fewer shells and the electronic bonding is much stronger. The electrons are held closer to the nucleus. It is easier for chlorine to attract and hold electrons in its outer shell forming stronger bonds with other atoms.
Why chlorine is soluble in water?
Chlorine gas is soluble because it disproportionates in water. This is a disproportionation reaction whereby Chlorine is both oxidised ( 0 in Cl2 to 1- in HCl) and reduced ( 0 in Cl2 to 1+ in HClO). This is rather a reaction than ordinary hydration. Thus, this happens relatively spontaneous.
What bond does chlorine have?
It forms strong ionic bonds with metal ions. Like fluorine and the other members of the halogen family, chlorine is diatomic in nature, occurring as Cl2 rather than Cl. It forms -1 ions in ionic compounds with most metals….Reactions with Oxygen.
| Oxidation State | Compound |
|---|---|
| +1 | NaClO |
| +3 | NaClO2 |
| +5 | NaClO3 |
| +7 | NaClO4 |
How many electrons are in the second energy level of chlorine?
The atomic number of chlorine is 17. So, the electronic configuration of chlorine is . The second energy level of chlorine is . Therefore, the total electrons in the second energy level of chlorine are 8. How many energy levels are there in an atom?
How much chlorine is in a litre of water?
Chlorine is present in most disinfected drinking-water at concentrations of 0.2–1 mg/litre (3). Food Cake flour bleached with chlorine contains chloride at levels in the range 1.3–1.9 g/kg.
What is chlorination and how does it work?
Chlorination is the process of adding chlorine to drinking water to kill parasites, bacteria, and viruses. Different processes can be used to achieve safe levels of chlorine in drinking water. Using or drinking water with small amounts of chlorine does not cause harmful health effects and provides protection against waterborne disease outbreaks.
What is a safe level of chlorine in drinking water?
Chlorine levels up to 4 milligrams per liter (mg/L or 4 parts per million (ppm)) are considered safe in drinking water external icon. At this level, harmful health effects are unlikely to occur. At this level, harmful health effects are unlikely to occur.