If a new element were discovered and it was found to form 1− ions, in which group would you place it in the periodic table?

Two things that biomedical has invented or innovated

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?