Prograde or direct motion, in astronomy, a type of astronomical bodies
Answer:
alkali metal
Explanation:
The alkali metals in period 4 will have the lowest ionization energy of the elements in the period.
Across a period ionization energy increases progressively from left to right due to decreasing atomic radii caused by the increasing nuclear charge which is not compensated for by successive electronic shells.
- Ionization energy is the energy needed to remove the most loosely bound electrons of an atom in the gas phase in the ground state.
- The measure of the readiness of an atom to lose an electron is the ionization energy.
Down a group, it decreases.
A unit cell is a simplest repeating unit in a crystal in which particle are freely vibrating
Sodium chloride having face centered cubic lattice in which sodium and chloride ion are arranged and vibrating.
The sodium ion are arranged on eight corners of the cube whereas they are also present on all the six centres of all six faces.
Thus, number of Na+ ion
Hence total of 14 sodium ions are present in NaCl lattice.
Answer:
Explanation:
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In this case, since the reaction between phosphorous and oxygen to form diphosphorous pentoxide is:
Thus, since phosphorous is in excess and oxygen and diphosphorous pentoxide are in a 5/2:1 mole ratio, we can compute the maximum moles of product as shown below:
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