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Fellowes Electron A4 Rotary Trimmer 19109J
4 types of blade included straight, perforated, wavy and fold, SafeCut stainless steel rotary blades for all-round total safety, accepts paperfilmphotos, interchangeable blades Using 80 gsm paper
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Ignitor Coils For Food Calorimeter
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Armorgard Drumcage Coshh Gas, Liquids and Slids Secure Storage Cage
Armorgard's DrumCage is the first choice for the safe storage of hazardous substances. With a unique COSHH compliant design, DrumCage is one of the few storage units on the market that is suitable for storing many types of hazardous substances, including gas and liquids. Robust safety features include a sturdy base, removable grated flooring and a 290 litre fully welded sump. DrumCage comes with one shelf as standard, with a second shelf as an optional extra. Forklift pockets mean the unit can be easily transported when empty. Features & Benefits • COSHH compliant storage unit for liquids, gases, and solids • Removable shelf has a 120kg safe working load capacity • Steel mesh is galvanised for ultimate durability • Strong grated floor allows heavy weights to be stored inside while allowing drainage into the large 290 litre sump • The door is fitted with a hasp and staple catch to allow the unit to be secured • Forklift pockets • Nut and bolt construction means the unit can be deconstructed Specifications • Internal Dimensions: 1150 x 1200 x 1800mm • External Dimensions: 1215 x 1265 x 2100mm • Material: Powder Coated Galvanised Steel • Material Thickness: 2.5mm • Locking Mechanism: Hasp & Staple • Sump Capacity: 290 litres
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Accessories 324157
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What is an unbound electron and a free electron pair?
An unbound electron is an electron that is not associated with an atom or molecule, meaning it is free to move independently. A free electron pair refers to two electrons that are not involved in bonding with other atoms, allowing them to move freely within a material. Both unbound electrons and free electron pairs play important roles in various physical and chemical processes, such as conducting electricity in metals or participating in chemical reactions.
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What is a unbound electron and a free electron pair?
An unbound electron is an electron that is not associated with an atom or molecule, meaning it is free to move independently. A free electron pair refers to a pair of unbound electrons that are not part of a chemical bond and are free to move around. These free electrons play a crucial role in various physical and chemical processes, such as conductivity in metals and chemical reactions.
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When does electron absorption occur and when does electron emission occur?
Electron absorption occurs when an electron gains energy and moves to a higher energy level within an atom or molecule. This can happen when the electron absorbs a photon of light or heat energy. On the other hand, electron emission occurs when an electron loses energy and moves to a lower energy level, releasing a photon of light or heat energy in the process. This can happen when an electron is excited to a higher energy level and then returns to its original energy level.
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What state do particles obtain through electron uptake and electron release?
Particles obtain a charged state through electron uptake and electron release. When a particle gains an electron, it becomes negatively charged, and when it loses an electron, it becomes positively charged. This process of gaining or losing electrons is known as ionization, and it results in the formation of ions with a net positive or negative charge.
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Floortex Doortex Heavy-duty Twistermat Vinyl Coils Dirt Trapping
Heavy-duty grit control. Heavy vinyl backing secures mat in place. Essential part of any dust and dirt control programme. Stops heavy sand and grit reaching the doorway. Vinyl coils form ridges that trap large particles. Grey. Size 600x900mm.
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Bumper Paint Accessories Set
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Canopy and Accessories Kit
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Sanitary bin accessories 356973
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What is electron migration?
Electron migration refers to the movement of electrons within a material or between different materials. This movement can occur due to an electric field, temperature gradient, or other factors that influence the flow of electrons. Electron migration is a key process in electronic devices and can impact the performance and reliability of these devices. It is important to understand and control electron migration to ensure the proper functioning of electronic systems.
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What is electron transfer?
Electron transfer is the movement of electrons from one atom or molecule to another. This process can occur through various mechanisms, such as oxidation-reduction reactions or in the context of electron transport chains in biological systems. Electron transfer is essential for many important processes in nature, including energy production, chemical reactions, and the functioning of biological systems.
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Why do free electron pairs require more space than bonding electron pairs?
Free electron pairs require more space than bonding electron pairs because they are not involved in forming a chemical bond and are therefore more spread out. Bonding electron pairs are shared between two atoms and are held closer together, occupying less space. Free electron pairs, on the other hand, are not constrained by a bond and repel each other, causing them to spread out and require more space. This is known as the lone pair repulsion effect.
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What is the identifying characteristic of an electron acceptor and electron donor?
The identifying characteristic of an electron acceptor is that it has the ability to gain or accept electrons during a chemical reaction. On the other hand, the identifying characteristic of an electron donor is that it has the ability to lose or donate electrons during a chemical reaction. These two roles are essential in redox reactions, where electrons are transferred from the donor to the acceptor, resulting in the conversion of chemical energy.
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