Physical Science: Chapter 3 Vocabulary quiz

4. subatomic particle that is found in the nucleus of an atom and has a positive charge is a ______________________.
5. shows that electrons move around in oddly shapedcomplex orbits and these orbits are areas where electrons will likely be found.
8. Atoms that have more protons than electrons are called ___________________.
9. A charged atom due to the atom gaining or losing electrons is called an ____________.
12. the total number of protons and neutrons in the nucleus of an atom.
14. a law that states opposite charges attract and like charges repel.
15. are spherical regions at fixed distances from the nucleus where electrons move about like the planets orbit the sun are called ____________ ____________.
16. Atoms of the same element with a different number of neutrons are called ____________________.
17. demonstrates that electrons move in fixed energy levels around the nucleus of the atom.

1. branch of physics that deals with the behavior of matter and energy at the atomic level is called _____________ _________________.
2. The weighted average of the masses of all the naturally occurring isotopes of that element is called
3. shows that electrons are randomly moving around in a positive matrix.
6. the number of protons in an atom of an element, identifies the element.
7. Atoms that have more electrons than protons are called ___________________.
10. found outside the nucleus and has a negative charge is called an ___________________.
11. The subatomic particle that is found in the nucleus of an atom and has no charge is a ________________________.
13. shows that the electrons move around a central positively charged nucleus of the atom.