Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
Answer:
3. be
Explanation:
it shows it in the word search
Positive ions are atoms that have lost an electron from its outtermost shell. It is positive because electrons are negative and the loss of something negative makes it a bit more positive.
A negative ion is larger than its original atom because it's gained an electron.
The more electrons an atomic has on its electron cloud, the bigger the atom.
Hopefully I didn't confuse you, good luck. ♡
Answer:
catalysts help speed up reactions which implies that they provide a alternative pathway and when there is less activation energy more particles have more energy to react
Answer:
single orbital, s sub level.
three orbitals, p sub level
5 orbitals , d sub level
seven orbital , f sub level
