Pretest Direction: Read each question carefully. Choone the letter of the BEST ANSWER Write your anewer on the answer sheet. 1. Who coined the word atom? A. Plato B. Aristotle C Galileo D. Demoeritus 2. Which of the following statements describes a molecule? A a mole's cuticle B. a part of an atom C# combination of two or more atoms Destructure made of electrons, prations, and neutrans 3. Which of the following best describes an atom? A a core of electrons and neutrans surrounded by protons E a core of protons and neutrons surrounded by electrons C. protons and electrons grouped together in a random pattern D. protons and electrons grouped together in an alternating pattern 4. Which subatomic particle is neutral? A Protons B Neutrons C. Nucleons D. Bectros 5. How many electrons does an element have if its atomic number is 22 C. 30 DAD ATO​

Answers & Comments


Add an Answer


Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Helpful Social

Copyright © 2024 EHUB.TIPS team's - All rights reserved.