PLEASE HELP which of the following has the smallest ionic radii?
1. K
2.Na
3.Ca
4.Mg

what is the density of an object that has a mass of 10 g and a volumeof 5 ml? a. 0.5 g/ mlb. 2 g/mlc. 15 g/ mld. 50 g/ ml

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.