The number of electrons in the outermost shell of the Sodium (Na) atom is (aka valence electrons) (Hint: check the “A” group # on your Periodic Table) 2 points
6
2
1
4

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

Calculate the concentration of all species in a 0.165 m solution of h2co3.