0.74405Covalent radius of an element having 82 electrons in extranuclear part and 82 protons in the nucleus is 146 Å. Calculate the electronegativity on Allred Rochow scale of that element.
Which elements have the following electron configurations? [Ar]4s23d8 [Ar]4s23d104p3 [He]2s22p6 [He]2s2 What element has 6 valence shell electrons and 16 protons? What is the valence shell? a. It is the shell of electrons in an atom that is th...
To solve the question, we need to identify an element that has a total of two electron shells and three electrons in its valence shell. Here’s a step-by-step breakdown of the solution:Step 1: Understand the Concept of Electron Shells</
An Se ion has a mass number of 78 and a charge of -2. Determine the number of electrons in this ion. The number of protons in a cation must always be ___ the number of electrons. An atomic cation with a charge of +...
Isotopes are atoms of the same element (that is, with the same number of protons in their atomic nucleus), but having different numbers of neutrons. Most (66 of 94) naturally occurring elements have more than one stable isotope. Thus, for example, there are three main isotopes of carbon....
electrons in an element? Element Atomic # Atomic mass # of protons # of electrons # of neutrons Mg Rb Au Pb Explain how to draw the nucleus of an atom. Draw the nucleus of the following atoms: Phosphorus Neon Oxygen-12 Helium-5 Element Atomic # Atomic mass # of ...
Here the aluminium ion is being reduced (electrons are added). The aluminium metal then sinks to the bottom and is tapped off.The positive anode oxidizes the oxygen of bauxite, which then reacts with the carbon electrode to form carbon dioxide:2...
Elements: Elements basically mean substances that cannot be broken down into other substances, unlike compounds that can be broken down into various constituent elements. An element contains the nucleus where the neutrons are located, electrons, and electrons. The protons have a positive charge,...
b) It has 8 valence electrons. c) It has 8 protons. d) It has 8 neutrons. e) Stable molecules with this atom have two bonds to each of this type of aAn element's most stable ion forms an ionic compound with bromine, ...
In physics, a fundamental element often refers to basic constituents of matter like electrons, protons, and neutrons, or to essential principles like force and energy. 12 What determines the unit used in a specific scientific measurement? The unit used in scientific measurements is determined by th...