11. When the periodic table was first developed, scientists grouped elements with similar characteristics in vertical columns. Which
other element has similar characteristics to sodium (Na)?
A. cesium (Cs)
B. bromine (Br)
C. magnesium (Mg)

Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium

What is i fracture in the crust called when land move up, down or sideways

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90