The atomic number of an atom of an element is 17 while its mass number is 35. How many neutrons does the atom have? How do you find the atomic mass of an element? Identify the isotope that has an atomic number of 76 and a mass number of 192. ...
What element has 16 neutrons and a mass number of 31? What atom has 15 electrons and 19 neutrons? What is the atomic number of an element that has six protons and eight neutrons? What is the mass of one tungsten atom? The atomic mass of tungsten is 183.8 g/mol. ...
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
What is the mass number of the hydrogen isotope that contains 2 neutrons? What is the valency of fluorine and how to find it? What is the difference between an isotope and an element? What element has 53 protons and 74 neutrons?
An element has 43 protons and 50 neutrons. What is the atomic number of the element? Nitrogen has an atomic number of 7. Which of the following elements have similar chemical properties: carbon, neon, phosphorus, or sulfur? Most of the ...
Theneutron isslightlyheavierthan theproton. This increases the mass of nuclei with more neutrons than protons relative to the atomic mass unit scale based on12C with equal numbers of protons and neutrons. Thenuclear binding energyvaries between nuclei. A nucleus with greater binding energy has lower...
defines the type of atom, i.e. which element it is an atom of. As indicated in theList of Chemical Elements, each atomic number corresponds to one single specific element. What about the number of neutrons in atoms ? Some elements have atoms that can include more than one number of neut...
When the stated mass number of an element is not a whole number that doesnotmean that there are parts of protons or neutrons present in the atom. It means that that mass number has been calculated to take into consideration theproportions of the different isotopes of that element believed to...
To complicate things a bit more, we sometimes find atoms of a chemical element that are a bit different to what we expect. Take carbon, for example. The ordinary carbon we find in the world around us is sometimes called carbon-12. It has six protons, six electrons, and six neutrons, ...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23