These elements, unlike the transition elements, do not exhibit variable oxidation states, and their valence electrons are only present in their outer shell. All of these elements are solid, have a relatively high density, and are opaque. They have oxidation numbers of +3, Â±4, and -3. The Other Metals are: Aluminum Gallium Indium Tin Thallium Lead Bismuth This website is copyright Â© 1996-2012 Yinon Bentor. The 7 elements classified as other metals are located in groups 13, 14, and 15.
1 The embryo grows rapidly, and the baby's external features begin to form. 2  Your baby's brain, spinal cord, and heart begin to develop. 3  Baby's gastrointestinal tract starts to form.  It is during this time in the first trimester that the baby is most at risk for damage from things that may cause birth defects.
Updated 4 March 2014. Puberty is the name for the time when your body goes through changes and you begin to go from being a child to an adult. Your hormone levels will change, you will develop breasts, grow taller, and start your menstrual periods. Puberty usually starts between 8 and 13 years of age.During puberty, the same changes happen to all girls, but the time they happen is different for every girl.These changes are all part of becoming a woman.pdated 4 March 2014. Puberty is the name for the time when your body goes through changes and you begin to go from being a child to an adult. Your hormone levels will change, you will develop breasts, grow taller, and start your menstrual periods. Puberty usually starts between 8 and 13 years of age.