Video Transcript
We have an electron configuration of one S 22, S 22 p. Three. The chip core here would be helium two, S 22, phường three outside the chip core here we have five Valence electrons. So our answer here would be five valence electrons.
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Intro khổng lồ Chem - Introduction
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure & properties. Chemistry deals with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds. Chemistry also involves understanding the properties & interactions of individual atoms and molecules for use in larger-scale applications.
Classification & Properties of Matter
In chemistry và physics, matter is any substance that has mass & takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, và in everyday as well as scientific usage, "matter" generally includes atoms & anything made up of them, và any particles và objects that act as if they have both rest mass & volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, và density. The Standard model of particle physics & the general theory of relativity describe fundamental particles & the fundamental forces acting between them that control the structure & dynamics of matter.