1. Which subatomic particle has a positive charge?
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Chapter 3: Atomic Structure
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2. The study of atomic structure helps to understand:
3. Yara is learning about nuclear force. She understands that it is the force that holds protons and neutrons together in the nucleus. What is true about the nuclear force?
4. Fatima is reviewing atomic structure and subatomic particles. She knows that electrons are found outside the nucleus. What is the approximate mass of an electron compared to a proton?
5. Rania is studying carbon dating. She learns that carbon-14 has a half-life of about 5730 years. What does half-life mean?
6. Omar is learning about the mass number of an atom. He knows that the mass number is the sum of protons and neutrons. If an atom has 6 protons and 7 neutrons, what is its mass number?
7. Which formula is used to find maximum electrons in a shell?
8. Mass number is the total number of:
9. George is reviewing atomic structure. He knows that atoms consist of subatomic particles. Which of the following is NOT a subatomic particle found in an atom?
10. Subshells are denoted by:
11. Which shell is closest to the nucleus?
12. Emma is learning about the quantum mechanical model of the atom. Her teacher explains that it is the most accurate model. What is a key feature of the quantum mechanical model?
13. The modern atomic model is based on:
14. Laura is learning about radioactivity. She discovers that some isotopes are unstable and emit radiation. What is the process called when an unstable nucleus emits particles and energy?
15. Mohamed is learning about the nucleus. He understands that the nuclear force holds the nucleus together. Why is the nuclear force necessary?
16. Chloe is analyzing the defects of Rutherford's atomic model. She learns that it could not explain certain phenomena. What was a major defect of Rutherford's model?
17. The maximum number of electrons in the first shell is:
18. The electronic configuration shows:
19. Waleed is learning about the relationship between subatomic particles. He knows that protons and neutrons have almost equal mass. What is the approximate relative mass of a proton?
20. The modern atomic model explains:
21. Usman is learning about the shell structure of atoms. He knows that the third shell (n=3) has three sub-shells: s, p, and d. What is the maximum number of electrons that can be held in the third shell?
22. The smallest particle of an element that retains its properties is:
23. The p-subshell can hold a maximum of:
24. Tina is studying electronic configuration. She is writing the configuration for oxygen (atomic number 8). What is the correct electronic configuration for oxygen?
25. Zayn is studying the behavior of protons in an electric field. He learns that protons are deflected towards the negative plate. What does this indicate about the proton?
26. Bongani is studying the postulates of Rutherford's atomic model. He learns that Rutherford proposed that the nucleus is positively charged. What did he conclude about the size of the nucleus?
27. Which particle determines the identity of an element?
28. Which subatomic particle has no charge?
29. Samir is learning about carbon dating. He discovers that it is used to determine the age of ancient artifacts. Which isotope is used in carbon dating?
30. Fatima is studying the Heisenberg uncertainty principle. She learns that it states that we cannot know both the position and momentum of an electron with complete certainty. This principle applies to which model of the atom?