|Nucleon | Proton| Number of|number | number| electrons|protons|neutronsmagnesium | | | | |atom,Mg |24 |12 |12 |12 |12Potassium | | | | |atom,K+ |40 |19 |18 |19 |21 Chloride | | | | |ion,Cl- |35.5 |17 |18 |18 |18 解析看不懂?免费查看同类题视频解析查看解答 ...
Atoms form molecules and compounds by sharing electrons to create chemical bonds. Understanding the nature of this bonding begins by knowing the number of electrons associated with each atom. With the information from a periodic table of the elements, and some straightforward arithmetic, you can calc...
and neutrons are found in the nucleus of the atom, while the electrons are outside the nucleus. The atomic number is the number of protons, while the mass number is the number of protons and neutrons. If an element is not charged, the number of electrons will equal the number of ...
Each atom in a redox reaction is assigned an oxidation number to understand its ability to donate, accept, or share electrons. It shows the total number of electrons that have been removed from or added to an element to get to its present state. For example, in Fe2O3, the oxidation ...
Each is given a specific number in the periodic table of the elements—examples are hydrogen (H) 1, helium (He) 2, oxygen (O) 8, and uranium (U) 92. The symbol Z is given to that atomic number, which is also the number of electrons in the atom and determines its chemical ...
(Electrons within a shell have very similar energies and are at similar distances from the nucleus.) In the chemical elements of atomic number 17 to 19, for example, the chloride ion (Cl−), the argon atom (Ar), and the potassium ion (K+) have 18 electrons in closed-shell ...
Charge From Assigned Electrons 0 0 Ionic Charge 1 -1 Total Charge 1 -1 Atoms 1 1 Average Oxidation Number1-1 Loading... +1 -1 K Br I -I Potassium Bromide What is the Oxidation State of Potassium in KBr? The average oxidation state of the 1 K atom in KBr is +1. What is the ...
is given credit for the discovery of oxygen. Later work showed the new gas to be a constituent of nitre, a common name forpotassium nitrate(KNO3), and, accordingly, it was named nitrogen by the French chemist Jean-Antoine-Claude Chaptal in 1790. Nitrogen first was considered achemical elemen...
展开全部 英英释义 Noun 1. the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element 行业词典 化学 原子序数 物理学 原子序数...
Protons and neutrons make up the nucleus and electrons orbit them in a cloud.Answer and Explanation: The mass number is not the number of protons. The mass number is the number of protons added to the number of neutrons. The mass number can be found......