百度试题 结果1 题目5 How many neutrons are present in the atom X? B A 21 B 24 C 45 D 66 相关知识点: 试题来源: 解析 B 反馈 收藏
An atom has an atomic number of 12 and a mass number of 25. how many neutrons does the atom have? How many neutrons does nickel have? How many neutrons are there in an atom of lead whose mass number is 208? How many protons are there in an atom of promethium?
百度试题 结果1 题目3 How many neutrons are present in the atom ? B A 21 B 24 C 45 D 66 相关知识点: 试题来源: 解析 B 反馈 收藏
How many neutrons does the atom have? How many protons, neutrons, and electrons are present in a platinum atom? What is atomic number of an atom? a. Number of protons b. Number of neutrons c. Number of electrons d. Total number of protons and neutro...
Does sulfur have 16 neutrons? (b) By referring to a periodic table or a table of elements, we see that sulfur (S) has an atomic number of 16. Thus, each atom or ion of sulfur must contain 16 protons. We are told that the ion also has16neutrons, meaning the mass number of the ...
aIf you study hard, you ___ the examination. 如果您艰苦学习,您___考试。[translate] aHow many neutrons are there in the nucleus of a Th-232 atom 多少个中子那里在Th232原子的中坚力量[translate]
Question: How many electrons are needed to form a charge of -8.30 NC? Quantization of charge: Quantization of charge means that charge on a body is in multiples of the charge on an electron. An electron carries the smallest unit of charge and it equals: {eq}e = -1.6 \times 1...
How does an atom try to fill its valence shell? If you know the atomic number and the mass number of an isotope of an element, how can you determine the number of protons and neutrons? Explain the concept of the mole. How many electrons does aluminium have? Calculate the number of mole...
bottle about the size of a bathtub, where they begin to decay into protons. Using sophisticated data analyses methods, researchers can count how many neutrons remain over time. (In the beam method, a beam of neutrons decays into protons, and the protons are counted not the neutrons.) ...
One uses magnets, the other, inertia. CONTAINING PLASMA IS A TRICKY BUSINESS. This soup of electrons, protons, and neutrons needs to push the mercury to at least 100 million degrees Celsius (for deuterium-tritium reactions), but getting plasma that hot isn’t necessarily the...