Use the periodic table to determine the electron configuration for aluminum (Al) and arsenic (As) in noble-gas notation. Al:

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

What is the most important factor in determining climates.