Zn 66 has how many neutrons

Appearance form : Solid powder. Colour: Grey. Odour: Odourless. Odour threshold: No data available. Molecular Weight: Evaporation rate: No data available. Flammability solid, gas : The substance is a flammable solid. Auto-ignition temperature: No data available. Decomposition temperature: No data available.

Viscosity, dynamic mPa s : No data available. Explosive properties: During processing, dust may form explosive mixture in air.

Oxidising properties: The substance or mixture is not classified as oxidizing. Reactivity: No dangerous reaction known under conditions of normal use. Chemical stability: Water-reactive, moisture-sensitive, air-sensitive, pyrophoric: spontaneously flammable in air. Possibility of hazardous reactions: Reacts violently with water.

Conditions to avoid: Heat, flames and sparks, moisture, dust formation. Incompatible materials: Strong acids and oxidizing agents. Information on toxicological effects: Not classified based on available information. Respiratory or skin sensitisation: Not classified based on available information.

Germ cell mutagenicity: Not classified based on available information. NTP: No component of this product present at levels greater than or equal to 0. OSHA: No component of this product present at levels greater than or equal to 0. Reproductive toxicity: Not classified based on available information. Specific target organ toxicity — single exposure STOT : Not classified based on available information.

Specific target organ toxicity STOT — repeated exposure: Not classified based on available information. Aspiration toxicity: Not classified based on available information.

Other adverse effects: An environmental hazard cannot be excluded in the event of unprofessional handling or disposal. Very toxic to aquatic life, with long lasting effects. Waste treatment methods: Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable.

Observe all local and national environmental regulations. Contact a licensed professional waste disposal service to dispose of this material. Hazard Class: 4. Regulation EC No. Regulation EU No. Authorisations: Regulation EC No. Restrictions on use: Regulation EC No. Not regulated. Always applicable. Other regulations: The product is classified and labelled in accordance with EC directives or respective national laws.

Chronic Health Hazard: No. Fire Hazard: Yes. Reactive Hazard: Yes. OSHA: Not applicable. National regulations: Follow national regulation for work with chemical agents. Chemical safety assessment: No Chemical Safety Assessment has been carried out. The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide.

The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product.

See reverse side of invoice or packing slip for additional terms and conditions of sale. See more Zinc products. Zinc atomic symbol: Zn, atomic number: 30 is a Block D, Group 12, Period 4 element with an atomic weight of The number of electrons in each of zinc's shells is 2, 8, 18, 2, and its electron configuration is [Ar] 3d 10 4s 2.

The zinc atom has a radius of pm and a Van der Waals radius of pm. Zinc was discovered by Indian metallurgists prior to BC and first recognized as a unique element by Rasaratna Samuccaya in Question e1 Chemistry Matter Mass Number. Stefan V. May 15, Explanation: One way we have of differentiating between various nuclides of the same element is by writing the name of the element followed by a hyphen and the mass number of the nuclide.

Related questions How do you find mass number of an isotope? What does the difference between the mass number and the atomic number tell us?

Why is mass number a decimal? What type of radioactive decay produces no change in mass number? We gots 30 protons, and there must 37 neutrons to make up the mass number, and give the 67Zn isotope. From memory this isotope is approx. The weighted average mass of all the isotopes is quoted as the atomic mass of zinc on the Periodic Table, How many protons, neutrons, and electrons does an atom of zinc have?

The short answer is a resounding YES. Electrons and other particles can be destroyed by a process known as pair annihilation. If a positron and an electron unite, they annihilate each other and release energy in the form of radiant energy, e.