Essay on Electron

Short Notes-Atomic Structure

Short Notes On Atomic Structure * Atom is the smallest particle of an element- All 117 elements has atoms * Bohr model: – Planetary model (see Figure 1 below) 1. Sun (proton & neutron= nucleus) 2. Planets (electrons) 3. Orbit (shell) Figure 1: Bohr model * Each type of atoms has a certain number of […]

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Electronic electroscope

An electroscope is the instrument used to detect charged bodies. Here, an electronic version of the scope that is more sensitive as compared to its conventional counterpart and which helps indicate the polarity of charge has been described. This circuit consumes very low quiescent power and reliably indicates charge induction and detection. The polarity of […]

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Molecule

Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It determines several properties of a substance including its reactivity, polarity, phase of matter, color, magnetism, and biological The angles between bonds that an atom forms depend only weakly on the rest of molecule, I. E. They can be understood as approximately […]

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Electronegativity Analysis

This page explains what electronegative Is, and how and why it varies around the Periodic Table. It looks at the way that electronegative differences affect bond type and explains what is meant by polar bonds and polar molecules. If you are interested in electronegative in an organic chemistry context, you will find a link at […]

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Gunshot Residue Aanalysis

When a piece is discharged. residues from the bullet’s force. the primer. cartridge instance. firearm itself and the pulverization from the propellent are expelled from spreads in the guns working parts ( Pepper. 2005: 118 ) . These atoms are known as gunfire residue ( GSR ) or firearm discharge residue ( FDR ) and […]

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Electrolysis of copper (II) sulphate solution

This investigation will examine one of the factors that affect the amount off copper deposited during the electrolysis of copper (II) sulphate solution. Electrolysis is the decomposition of an ionic solution by electricity. The electricity splits ionic chemical compounds into separate components, for example, copper chloride can be split into Cu metal and Cl gas. […]

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Photocopying Machine

Photocopying is a quick and cheap process of reproducing documents or materials. Mostly, photocopying process is with the use of dry heating called Xerography. Photocopying Machine The photocopy machine a worldwide used electronic machine which are useful both in school and offices. It can be used by a person to reproduce even much volume of […]

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