Answer:
elements and compounds
Explanation:
Pure substances contain the same type of particles in the substance. All the component particles in a pure substance have exactly the same composition and are present in exactly the same proportion.
An element consists of atoms of the a particular element in a specified arrangement. A compound is composed of atoms of elements joined together in a unique way and that arrangement is maintained throughout the substance. Hence these are pure substances.
Pt195 having 78 atomic number is the daughter nucleus produced when Au195 undergoes electron capture.
An unstable isotopes can undergoes radioactive decay to form a more stable isotopes . Initial isotopes is called parent nuclide and the resultant isotopes from radioactive decay is called the daughter nuclide There are several radioactive decay like alpha decay , beta decay , gamma decay , electron capture etc .
In electron capture , the atom have only one less which is daughter isotopes than electron than atomic number of parent isotopes.
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Answer:
What kind of industry is cement industry?
The cement industry is one of the main industries necessary for sustainable development. It can be considered the backbone for development. The main pollution source generated from cement industry is the solid waste called cement by-pass dust, which is collected from the bottom of the dust filter.
Explanation:
Its is true that light from an unshaded bulb radiates in all directions
