Calculate the number of atoms in 2.5 mol manganese. O 3.6 X 1024 Mn
O 0.44 X 1024 Mn
O 2.8 X 1023 Mn
O 1.5 X 1024 Mn
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Using the periodic table, complete the table to describe each atom. type in your answers

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.

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.