The repeating periodicity of the blocks of 2, 6, 10, and 14 elements within sections of the periodic table arises naturally from the total number of electrons that occupy a complete set of s, p, d and f atomic orbitals, respectively, although for higher values of the quantum number n, particularly when the atom in question bears a positive charge, the energies of certain sub-shells become very similar and so the order in which they are said to be populated by electrons (e.g. Cr ...
Bursitis (sore toes) A bursa is a small fluid-filled sac located near a joint, bone or tendon which protects the area from friction. Bursitis is an inflammation of the bursa, and commonly occurs in the little toe. If your toe feels 'squidgy' and is causing you pain, bursitis may be the cause.
When the sensitive skin on the bottom of the feet and heels becomes too dry, it can split open, leaving painful cracks called fissures on your heels. Those cracks may not only make it painful to walk, but can also lead to serious infections. Cracked Heels: How They Happen.Cracks in the heels are generally caused by insufficient moisture. These cracks can become sore and may even bleed. Seriously dry feet can occur for a number of reasons, including: 1  Cold winter weather. 2  Dehydration, or not drinking enough water.3  Not moisturizing your feet. 4  Taking very hot baths or showers.hose cracks may not only make it painful to walk, but can also lead to serious infections. Cracked Heels: How They Happen. Cracks in the heels are generally caused by insufficient moisture. These cracks can become sore and may even bleed. Seriously dry feet can occur for a number of reasons, including: 1  Cold winter weather.