Answer:
3
Explanation:
you must multiply everything out till everything is equal on both sides
Density = mass / volume
Density = 22.8/14.7
Density = 1.6
B
Explanation:
cause carbon is less than all of them in periodic table which therefore least in the group
The valence electron is the outermost shell
The question is incomplete but i will try to offer as much help as i can.
Answer:
See explanation
Explanation:
The electron was discovered by J.J Thompson. His model of the atom was called the plum-pudding model of the atom.
He discovered that cathode rays being negatively charged particles were deflected by a magnet in just the same way as moving, negative electrically charged particles.
Similarly, in an electric field, they are deflected towards the positive plate of the electrostatic field which shows that they are negatively charged.