What property of an element does the group number identify in a numbering system that uses "A" and "B"?
A. The number of core electrons
B. The number of valence electrons
c. The number of inner electrons
D. The electrons closest to the nucleus

What does the process of natural selection involve

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes

What is the molecular weight of copper