9. This term describes elements that spontaneously emit radiation. _____________________10. An atom that is no longer neutral because it has gained, or lost electrons is called an _____.11. The ______________ contains protons and neutrons in an atom.Scientists who contributed to the Atomic Theory12. Discovered the neutron. ___________________________13. Believed an atom, or “atomos” cannot be divided, created, or destroyed. ____________________________14. Showed that most of the mass and positive charge of an atom is concentrated in its center _____________________15. He discovered the electron; proposed the plum pudding model of the atom. _________________________________16. Proposed an atomic model where atoms cannot be divided, created, or destroyed.
Question
- This term describes elements that spontaneously emit radiation. _____________________10. An atom that is no longer neutral because it has gained, or lost electrons is called an _____.11. The ______________ contains protons and neutrons in an atom.Scientists who contributed to the Atomic Theory12. Discovered the neutron. ___________________________13. Believed an atom, or “atomos” cannot be divided, created, or destroyed. ____________________________14. Showed that most of the mass and positive charge of an atom is concentrated in its center _____________________15. He discovered the electron; proposed the plum pudding model of the atom. _________________________________16. Proposed an atomic model where atoms cannot be divided, created, or destroyed.
Solution
- This term describes elements that spontaneously emit radiation. Radioactive
- An atom that is no longer neutral because it has gained, or lost electrons is called an Ion.
- The Nucleus contains protons and neutrons in an atom.
Scientists who contributed to the Atomic Theory 12. Discovered the neutron. James Chadwick 13. Believed an atom, or “atomos” cannot be divided, created, or destroyed. Democritus 14. Showed that most of the mass and positive charge of an atom is concentrated in its center. Ernest Rutherford 15. He discovered the electron; proposed the plum pudding model of the atom. J.J. Thomson 16. Proposed an atomic model where atoms cannot be divided, created, or destroyed. John Dalton
Similar Questions
This term describes elements that spontaneously emit radiation
17. Believed electrons moved in a circular orbit around the nucleus. ____________________________18. Quarks make up ____________ and ______________.19. How are ions formed?20. A ___________ ion is formed when an atom loses an electron. It is called a ________________.21. A ___________ ion is formed when an atom gains an electron. It is called a ________________.Chapter 10 Review Questions1. Column on the periodic table. ___________________________2. A row on the periodic table.
The atomic number tells you ______ in a neutral atom.
7. Any of the two or more atoms of the same element that have different numbers of neutrons. _______________
A particle has 11 protons, 11 neutrons and 10 electrons.Determine what this is an example of. A negative ionA neutral atomA positive ion
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