Atoms of the same element but with a different number of neutrons are referred to as {Blank}. The mass number of an atom depends primarily on the number of a. protons and neutrons. b. positrons. c. neutrons and electrons. d. ...
What is the atomic number of an element with 6 protons, 7 neutrons, and 6 electrons? A. 7 B. 13 C. 6 D. 12 What is the atomic number of an element with 8 protons, 9 neutrons, and 8 electrons? a. 9 b. 15 c....
百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y? B2039A YB19192039C YD1919 相关知识点: 试题来源: 解析 B 反馈 收藏
Describe the structure of an atom.An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines
The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it? What is atomic number of the element? 1) An element with : 44 atomic number 102 atomic mass What is the element? Express your answer as an isotope. 2) An element wi...
For example, the mass number of a carbon atom with 6 protons and 6 neutrons in its nucleus is 12. Isotopes Although all atoms of an element have the same number of protons in their nuclei, they may not all have the same number of neutrons. Atoms of an element with the same mass ...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
9.Two very important elements in our lives on earth are carbon and nitrogen, and we would also need them on Libra. 10.Every time we add one or more protons and enough neutrons to keep the nucleus together, we make a new chemical element. ...
Why technetium is radioactive has to do with the way that protons and neutrons fit together in the nucleus. It's reasonably well understood why technetium can't find a stable configuration, and I think it's fair to say that it boils down to rotten luck. Here's an article about it. Te...