How does the periodic table help in predicting the formula of a stable ionic compound?
• Metals in Group 1 form cations with a -1 charge.
Metals in Group 2 form cations with a +2 charge.
Metals in Group 1 form anions with a +1 charge.
O Metals in Group 2 form anions with a -2 charge.

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

What are the student's observations and inferences before he starts his investigation?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above