This is concentration problem set. PLEASE no links and please don’t respond just for point. I would seriously appreciate the help:)

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments