Give me an atom with the following characteristics. e. lanthanide series___. b. chalogen___. d. boron. f. alkaline earth metal__.

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

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Rays from the sun are not considered matter true or false