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while is second ionization energy of alkaline earth metals is less than that of corresponding alkali metals
Although IE1 (first ionization energy) values of alkaline earth metals are higher than that of alkali metals, the IE2 (second ionization energy) values of alkaline earth metals are much smaller...
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The second ionization energy of alkaline earth metals is less than that of corresponding alkali metals because
First ionization energy values of alkaline earth metals are higher than that of alkali metals, but second ionization energy values of alkaline earth metals are much smaller than those of...
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When alkali metals are heated with Hydrogen they form ------ hydryide
a) non-stoichiome try b) covalent c) Ionic d) metalic
C) ionic
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the discovery of ---------- rejected law of octave..
A. Halogens
B. Inert gases
C. Alkali Metals
D. Heavy metals
The Law of Octaves was published by John Newland in 1864. He proposed that some of the physical and chemical properties of the elements must be repeated after every seven...
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Which of the alkali earth metal is not collected as alkali earth metals because its oxide is not alkaline ?
Beryllium.Beryllium oxide is amphoteric
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Which of these alkali earth metals forms more complexes ?
Be
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What are alkali metals? Why do these metals not occur in free state in nature? List the principal ores of alkali metals.
Alkali metals are: - Lithium (Li); - Sodium (Na); - Potassium (K); - Rubidium (Rb); - Cesium (Cs); - Francium (Fr). All alkali metals have their outmost electron in the s-orbital. This pre-determines their high chemical...
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Are Group 3A elements more reactive than 4A?
Is Fe Zn Cu more reactive
How can you tell by looking at the periodic table?
There are two main characteristics determining the chemical reactivity: ionization energy for metals and electronegativity for non-metals. Ionization energy is increasing from left to right in a period and decreasing...
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Why are metals very good conductors of electricity?
The metals very good conductors of electricity, because metal atoms in the crystal lattice have the possibility of electron emission from the shell. As a result, in the metal lattice...
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Boron is non reactive in non temprature why???
Crystal Boron consists of icosahedra (specific structure) and the energy of bonds B – B between icosahedra is very high (243 kJ/mole) which determines high solidity, high temperatures and energies...
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