Electrostatics
Across
- 4. While the electrons are attracted to the protons of the nucleus, the addition of _________ to an atom can persuade the electron to leave the atom.
- 8. The building block of which all matter is composed became known as the _________ around 400 BC.
- 9. The amount of charge on a single proton is _________ to the amount of charge possessed by a single electron, although they may have a different sign.
- 10. Objects that have opposite charges (one positive and one negative) have a(n) _________ force.
- 11. If an atom has _________ electrons than protons it is said to be positively charged.
- 14. Rutherford developed the idea that the _________ is a densely packed core surrounded by electrons.
- 15. Bohr’s findings led us to our current view of the atom, called __________ (twowords).
- 18. The Coulomb is the basic unit of _________.
- 19. Neils Bohr explained that the electrons were in _________ around the nucleus.
- 20. If an atom has _________ electrons than protons it is said to be negatively charged.
- 21. This is the positively charged particle in the nucleus.
- 23. If your socks _________ electrons, they become negatively charged.
- 24. Each electron shell has a different _________ level.
Down
- 1. In the world of electrostatics, opposites _________ and likes _________ (two words, in order, and don’t use a space).
- 2. Since the unit of Coulomb is so large, we often use _________coulombs and nanocoulombs.
- 3. If your socks have an equal amount of electrons and protons, they are _________.
- 5. This type of electricity is responsible for lightning, giving you a shock when you touch a doorknob, and sticking balloons to walls.
- 6. The atom is mostly _________ (two words).
- 7. If your socks _________ electrons, they become positively charged.
- 9. JJ Thompson discovered a negatively charged particle which we know as the _________.
- 12. Electostatics and electricity is all about one particle moving, and that’s the _________.
- 13. The number of electrons around a nucleus will determine if an atom is electrically _________ or neutral.
- 16. The unit of charge is the _________.
- 17. Objects that have like charges (both positive or both negative) have a(n) _________ force.
- 22. If an atom has the same number of protons and electrons, it is described as electrically _________.