In which direction are groups on the periodic table? →, ↓, ↘ in which direction are periods on the periodic table?
a. →
b. ↓
c. ↘

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Which element is least likely to undergo a chemical reaction

The same side of the moon always faces earth because the