Question

vocabulary word bank questions (21-35) write your answer on the line.word bank: atom, element, electron, proton, neutron, nucleus, atomic number, mass number,isotope, valence electron, lewis dot structure, octet rule, symbol, electron cloud, shell21. the central part of an atom that contains protons and neutrons is called the ________.22. the smallest unit of matter that retains the properties of an element is called an ______.23. a positively charged subatomic particle is called a ______.24. a subatomic particle with no electrical charge is called a ______.25. a negatively charged particle that moves around the nucleus is called an ______.26. the number of protons in an atom is known as the ______.27. the total number of protons and neutrons in an atom is called the ______.28. atoms of the same element that have different numbers of neutrons are called ______.29. electrons located in the outermost energy level of an atom are called ______.30. a diagram that shows valence electrons around an elements symbol is called a ______.31. the rule stating that atoms are most stable when they have eight valence electrons is called the ______.32. the space where electrons are most likely to be found around the nucleus is called the ______.a one- or two-letter abbreviation used to represent an element is called a ______.a substance made of only one type of atom that cannot be broken down chemically is called an ______.e energy level where electrons are located around the nucleus is called a ________.

Explanation:

Each answer is matched to the definition using the provided word bank, based on basic atomic structure and chemistry terminology.

Answer:

1. Nucleus
2. Atom
3. Proton
4. Neutron
5. Electron
6. Atomic Number
7. Mass Number
8. Isotope
9. Valence Electron
10. Lewis Dot Structure
11. Octet Rule
12. Electron Cloud
13. Symbol
14. Element
15. Shell