Sodium metal (atomic weight 22. 99 g/mol) adopts a body-centered cubic structure with a density of 0. 97 g/cm3. You may want to reference (page) section 12. 3 while completing this problem. Use this information and avogadro's number (na = 6. 022×1023) to estimate the atomic radius of sodium in å (angstrom). Express your answer to two significant figures.

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers