Consider a Si atom with a charge of -2 and a mass number of 28. This type of ion is called alan
How many protons in the nucleus?
How many neutrons in the nucleus?
How many electrons in the electron cloud?
If this Si lost 2 electrons, what would the charge be?

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

What is the equilibrium constant of aa+bb=cc+dd

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium. b)heavier than helium. c)the same weight as helium. d)dependent on the element that reacted with carbon.