Why do lithium, sodium, and potassium exhibit similar chemical properties? How are the shapes of the equipotential surfaces related to those for the electrodes? Why do electrons in insulators not contribute to its conductivity? Why the ferromagnetic materials can be magnetized easily?
How many shells are represented in the presently known periodic table? How do two different isotopes of carbon differ from each other? Why do lithium, sodium, and potassium exhibit similar chemical properties? What is the name of the Li element?
Potassium and caesium have much lower ionization enthalpy than that of lithium . As a result , these metals on exposure to light , easily emit electrons but lithium does not . Therefore , K and Cs rather than Li are used in photoelectric cells.
Most of the alkali metals, such as lithium, sodium, and potassium, are very similar. They are soft, reactive, silvery solids. They have one outer electron and conduct electricity. They are easily cut with a knife. But, there is an exception – an anomaly. Right at the very top of thes...
3.Size and Ionization Potential: -Smaller Atomic Size: The first element in a group has a smaller atomic radius compared to the other elements in the group. For example, lithium is smaller than sodium or potassium. -Higher Ionization Energy: The first element generally has a higher ionization...
Why are the metals gold and silver found as elements in nature, whereas the metals sodium and magnesium are found in nature only in compounds? Why do lithium, sodium, and potassium exhibit similar chemical properties? Why is lead used as one of the metals in a therm...
Why are titanium and gallium not very similar while lithium and sodium would be most similar? Why are no two emission spectra for different elements ever the same? Dalton assumed that all atoms of the same element are identical in all their properties. Explain why this...
Why potassium is more reactive than sodium Why do elements in the same group of the periodic table have similar properties? Why does metallic bonding only occur between metals? Why do halogens have high ionization energy? Why does chlorine have high ionization energy but forms an ion relative...
Why do lithium, potassium, and sodium exhibit similar chemical properties? Explain why the chemical activity of tire noble gases went undiscovered for so long. How do noble gases differ from other elements? It seems that as stars e...
How are elements with nuclei heavier than those of hydrogen and helium formed?Why do lithium, potassium, and sodium exhibit similar chemical properties?What property do H, Li, Na, and K have in common?What is the name of the Ne element?