When we describe properties of substances, we can divide them into chemical properties and physical properties. Chemical properties are how the substance react with other substances, while physical properties are mostly observable or measurable, which does not require the substance into reacting with other substances.
Since group I are all metals, the physical properties include shiny, malleable, ductile, good conductors of heat and electricity, have high melting points etc.
Chemical properties include react vigorously with water to form metal hydroxide and hydrogen, or react with oxygen to form metal oxide.
The energy gap in band theory is almost equivalent to zero in conductors. It is roughly equivalent to I e V in semiconductors and about 5 e V in insulators.
In solid-state physics, the band theory is a theoretical model that describes the states of electrons in solid materials that can only have energy values that fall inside particular narrow ranges. The behavior of every other particle nearby affects how an electron behaves in a material and, consequently, how much energy it has.
The quantum state that an electron assumes inside a solid metal is described by the band theory of solids. There are numerous distinct energy levels present in every molecule. Band theory does a good job of explaining how electrons behave inside molecules. Science's quantum revolution provided part of the knowledge that went into the development of band theory.
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Mass-mass, volume-volume, mass-volume, and mole-mole
Answer:
aims to benefit the environment is the correct answer.
Explanation:
The goal of Aims to the benefits environment is to provide everyone information, values, and skills which are required to preserve and protect the environment.
Aims to benefit the environment includes
- To decrease emissions and reduce pollution.
- To improve waste management methods.
- To reduce the consumption of natural sources.
- To minimize noise and different nuisances.
Answer:
The periodic table
Explanation:
The periodic table can show the atomic number and atomic mass of any atoms easily. To convert grams of water to moles of water, you need to know the atoms that made up water molecules then find out their molecular mass. Water is made of two hydrogens and one oxygen atoms. Then you can find the atomic mass of hydrogens is 1 while oxygen is 16. The molecular mass of water will be 2*1 + 16= 18g/mol.