Determine the charge on the object and explain why it has this charge
Answers
Answer:
1. +3 as it has 5 proton and 2 electron
2. 0 as it has 8 proton and 8 electron
3. 0 as it has 8 proton and 8 electron
4. +4 as it has 8 proton and 4 electron
5. -1
6. +20
7. -100
Answer:
1. +3 charge is on the cylinder.
2. 0 charge is on the cuboid.
3. 0 charge is on the sphere.
4. +4 charge on the rectangle
5. -1 charge is on the atom.
6. +20 charge is on the atom.
7. +100 charge is on the object.
Explanation:
1. There are 5 positive charges and 2 negative charges in the cylinder. The 2 negative charges cancel out only 2 positive charges. 3 positive charges are left, making the cylinder positively charged.
(+5) + (-2) = +3
2. There are equal numbers of positive charges and negative charges. There are 8 positive charges and 8 negative charges. They all cancel out each other, making the cuboid neutral.
(+8) + (-8) = 0
3. There are equal numbers of positive charges and negative charges. There are 8 positive charges and 8 negative charges. They all cancel out each other, making the sphere neutral.
(+8) + (-8) = 0
4. There are 8 positive charges and 4 negative charges in the rectangle. The 4 negative charges cancel out only 4 positive charges, creating a positively charged rectangle.
(+8) + (-4) = +4
5. There are 16 electrons and 15 protons in the atom. The 15 protons cancel out only 15 electrons, making the atom negatively charged or anionic.
(+15) + (-16) = -1
6. There are 100 electrons and 120 protons in the atom, the 100 electrons cancel out only 100 protons. 20 protons are left, making the atom positively charged or cationic.
(+120) + (-100) = +20
7. The neutral object loses 100 electrons, now it has 100 extra protons. Hence, it is positively charged.
= +100