1. How do transition elements differ from elements in Groups 1 and 2?
A. They are less stable.
B. They are usually gases at room temperature.
C. They are more stable.
D. They are brittle and powdery.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

the correct answer is c