Aluminum is a metallic element with 3 valence electronsWhat is its oxidation number?
since aluminum has 3 valence electrons it needs 5 more to form an octet at 85- would cause it to gain 5 electrons, so 3.
Yes there is another easy alternativeBuy some surgical gloves and wear a pair each day while you workRemove the glove and your hands are cleanI see some cashiers at our local stores who do this for sanitary reasonsIts best not to lock your phone in something that might case it to overheat.
