Lead has an atomic number of 82, followed by Bismuth and then polonium, which is listed as a "Metalloid" or semi-metal. These have the highest number of electrons.
No, barium does not have a charge of negative two. Barium is a metal element with a charge of +2.
See if it can carry a charge.
induction. The negative charge on the object will repel the electrons in the metal comb, causing them to move away. This will leave the comb with a positive charge.
Ionic compounds are compounds composed of ions held together by electrostatic forces. These compounds typically consist of a positively charged metal ion and a negatively charged nonmetal ion. The metal ion carries a positive charge, while the nonmetal ion carries a negative charge.
The negative charge of the object will induce a positive charge on the comb, causing the comb to be attracted to the object.
Yes, but only if its current charge is the opposite of your current charge. (ex. being you're currently negative and the piece of metal is positive.)
The metal will have a net charge of -3 because gaining 5 negative charges adds -5, and losing 8 negative charges adds +8, resulting in a total of -3 negative charges.
If the metal ball acquired a negative charge after being grounded, the charged object must be positively charged. When grounded, the metal ball gained electrons which caused it to become negatively charged. This would only occur if the charged object had an excess of positive charge to transfer to the metal ball.
They contain delocalised electrons which can move and carry charge.
When a metal rod is rubbed together with silk, electrons transfer from the metal rod to the silk due to the difference in their electron affinities. This creates a charge imbalance, with the metal rod acquiring a positive charge and the silk a negative charge. This is known as triboelectric charging.
The material you are referring to is called a zwitterionic material, or on ocassion and amphoteric laterial. These materials carry both a positive and negative point charge on the same molecule.
It could be either. Once a metal produces an ion (an atom with electric charge) it could be positive or negative, depending on number of electrons lost or gained.