Consider a Ca atom with a charge of +2 and a mass number of 44. This type of ion is called a/an
How many protons in the nucleus?
How many neutrons in the nucleus?
How many electrons in the electron cloud?
If this Ca gained 4 new electrons, what would the charge be?

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.