WebJan 15, 2024 · Therefore, an s orbital can hold two electrons, a p orbital can hold six electrons, a d orbital can hold ten electrons, and an f orbital can hold 14 electrons. Ground State Electron Configuration Quantum numbers There are four quantum numbers n, … WebDec 6, 2024 · Group 1 metals are less reactive than group 2 metals. Its valence shell contains 2 electrons. They have low electronegativity. Compounds of alkali metals are often insoluble in water. Alkaline metals are usually Shiny, silvery. They have ions with a +2 charge. They are solid. They are harder, denser, stronger.

Radium Description, Properties, Symbol, Uses, & Facts

WebRadium is present at very low concentrations in sea water. Most radium, 226 Ra, arises from the decay of the plentiful 238 U, hence radium is obtained in residues taken from uranium production. Isotopes: Radium has 33 isotopes whose half-lives are known, with mass numbers 202 to 234. None is stable. 226 Ra has the longest half-life of 1602 years. WebMar 14, 2024 · Radon atoms possess a particularly stable electronic configuration of eight electrons in the outer shell, which accounts for the characteristic chemical inactivity of the element. Radon, however, is not chemically inert. dani with binx funko

The nucleus of an atom contains a protons and - Course Hero

WebNov 5, 2024 · If there are more protons than electrons, an atomic ion has a positive charge and is called a cation. If there are more electrons than protons, the ion has a negative charge and is called an anion. Elements are shown from atomic number 1 (hydrogen) up to 94 (plutonium). However, it's easy to determine the configuration of electrons for heavier ... WebRadium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure … Web13 rows · Mar 29, 2024 · There are 118 elements in the periodic table and 88th of these elements is radium. The elements in ... dani wray city of sparks