Through Air sounds travels approximately 343 meters/second. Why the difference? Because the closer together the molecules in a substance are, the faster sound will travel through that medium.
Explanation:
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The logarithmic of the reciprocal of hydrogen - ion concentrate in grams atoms per litre
Answer:
He has two protons
Li electron has one electron in its outermost orbital.
Number of neutrons of nitrogen = seven neutrons
The second shell of boron: 3 electrons.
Explanation:
An atom is composed of electrons, protons and neutrons. The number of neutrons is determined by subtraction of the atomic number from the mass number.
The electronic configuration is already known for each of atoms in these questions according to standard tables.
Answer:
sodium is stored under oil
Explanation:
to prevent reactions with oxygen
