positive
It depends on how long it takes for the charge to diminish so that it can no longer hold the balloon against gravity. Principal factors will be the conductivity of the balloon's material, and the humidity of the air.
I believe you mean charging by contact as in electrons hitting the atom- then I suppose it would be a negative charge, because an electron is negative and it would make the charge of the opposing atom negative.
When you let go of a balloon the air that is inside of it makes it fly up.It is impossible for it to go up to space.If its without helium then it takes about 6 days.
point charge (apex)
Rubber is a compound with large molecules loosely bound by hydrogen bonding and is holey as it is stretched. Coating a balloon with aluminum which has atoms regularly spaced, forms a cohesive layer with less space between particles and less holes.
It has electro static cells that form when re-peatedly rubbed wich creates friction ending with a attraction to the item of your choice. When you rub the balloon you create a static charge that is positive and the attraction that makes it stick to the wall is because the wall has a negative charge and like poles attract.
It takes 6.25E18 electrons to produce 1 coulomb of charge.
This has to do with the charge of the objects. Positively charged items stick to negatively charged items (think "opposites attract"). Though objects like hair and balloons are generally neutral (without a charge) and do not attract anything, this can be changed through the transfer of electrons. Electrons are negatively charged subatomic particles that can be transferred between items through contact. When you rub a balloon on your hair, the contact between your hair and the balloon allows electrons to be transferred, known as the triboelectric effect. Some materials are more likely to gain electrons and become more negative, while others are more likely to lose electrons and become more positive. In the case of hair and a balloon, the electrons are transferred from your hair to the balloon, so the balloon becomes negative. Now that electrons have been transferred, your hair and the balloon are of opposite charged and attract one another; therefore, your hair sticks to the balloon. Before the balloon contacts the hair, they both have a stable balance of electrons and protons. Once the balloon is rubbed on the hair, it takes electrons from the hair. Thus leaving the hair positively charged and the balloon negatively charged. Once the balloon is pulled away the hair sticks to it. This happens because opposite charges attract and since the hair was positively charged, and the balloon is negatively charged, they attract.
An atom takes on a negative charge by gaining electon/electrons and thus, becomes an anoin
The amount of electrons it takes to make 80CU of charge would come as an equation. CU stands for Coulombs. It would take 4.9932078e+20 electrons for 80 CU of charge.
It depends on how long it takes for the charge to diminish so that it can no longer hold the balloon against gravity. Principal factors will be the conductivity of the balloon's material, and the humidity of the air.
When an atom gains or loses electrons and therefore becomes an ion, it takes on either a positive or negative charge (positive if it lost electrons, negative if it gained electrons) and can bond to ions of the opposite charge in an ionic bond.
Ionic bonding- the transfer of electrons from one atom to another. This results in ions, as the atoms which gain/lose electrons now have a charge.
The charge an element would have if it lost or gained electrons
It must take electrons from either another atom or be ionized. If it takes electrons from another atom then it has more electrons than protons, which gives it a negative charge.
When an atom has more protons than electrons it is called an ion. This is a positively charged particle because it has more protons than electrons, thus the positive charge takes over.
I believe you mean charging by contact as in electrons hitting the atom- then I suppose it would be a negative charge, because an electron is negative and it would make the charge of the opposing atom negative.