University:
California State University, San Marcos
Course:
CHEM 160 | General Chemistry II
Academic year:

2022
Views:

291

Pages:

2
Author:

Prince Sampson

Answer Key Name: ____________________________ Atoms Vocabulary atom electron element matter molecule neutron nucleus proton quark Use the word bank above to fill in the blanks. matter 1. Anything that has mass and takes up space is ________________________________. proton 2. A positively charged particle in an atom is the ________________________________. molecule 3. A(n) _________________________________ is the smallest unit of a chemical compound that retains the properties of the compound. element 4. A(n) ______________________________ is matter that is composed of only one kind of atom. electron 5. A negatively charged particle in an atom is the ______________________________________. atom 6. A(n) ________________________________ is the smallest particle of an element that retains the properties of that element; the building blocks of matter. 7. A particle with no charge that is found in an atom is the ________________________. neutron 8. An elementary particle that makes up protons & neutrons is a(n) _________________________________. quark 9. The __________________________ is the core of the atom, made up of protons & neutrons. nucleus Knew/New 1. 2. Write down 3 things you already knew about chemical reactions that were confirmed through watching the video: Answers will vary. 3. 1. 2. 3. Write down 3 new things that you learned from watching the video: Answers will vary. Episode Guide "uncuttable" 1. What does the Greek word for atoms mean? _________________________________________ nucleus 2. The heavy particles of an atom are located ___________________________________________________. empty space 3. Atoms are mostly made up of __________________________________________________. Protons neutrons 4. ______________________ & _______________________ are located in the nucleus of an atom. outside of the nucleus 5. Where are the electrons found? ____________________________________________________ 1 million 6. Atoms are so small that you could fit how many on the head of a pin? _____________________________ the number of protons in the nucleus 7. What makes 1 atom different from another? ___________________________________________________ the number of protons in the nucleus 8. What does the atomic number tell you about an element? _________________________________________ energy 9. Anything that is not matter is a form of _____________________________________. carbon 10. What element is found in every living thing? _____________________________________ True or False 1. Atoms are mostly empty space. T or F 2. Each element has a specific number of protons in the nucleus. T or F 3. Electrons are the largest particles in an atom. T or F 4. A branch of chemistry is named after oxygen. T or F 5. Heat is a form of matter. T or F 6. Neutrons are negatively charged. T or F 7. A quark is a small particle that makes up protons & neutrons. T or F 8. The atomic number tells you the number of electrons in the nucleus of an atom. T or F 9. Energy is anything that has mass & takes up space. T or F 10. Protons & electrons make up most of the mass of an atom. T or F