The atomic radius of chlorine is 102 pm. Explain why the radius of Cl in the perchlorate anion is 41 pm, whereas the radius of Cl in the chloride anion is 181 pm. Compare both values to the atomic radius.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What overall charge must all compounds have