A variation of an element, has different number of neutrons, but same number of protons and electrons, is called what? Atoms with the same number of protons but with different numbers of neutrons are: a. Different elements b. Isot...
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
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
10.Every time we add one or more protons and enough neutrons to keep the nucleus together, we make a new chemical element. 11.To grab the answer, and grab it first, is for them a more powerful drive than feeding or breeding or protecting themselves against the elements. ...
How many atoms are present in 1 gram of carbon-12? In chemistry, how can one tell if an element is able to be paired with another element? Are there any elements in neutron stars, and if so what are they? How do you show the number of p...
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 ...
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...
Thefluorineelement is a chemical species that has a total of nine protons and ten neutrons in its nucleus.Protonsare positively charged entities whileneutronsare neutrally charged entities; both of which are condensed together in the center of the atom to form a nucleus. Theatomic massis the mas...