Chemical shift allows a chemist to obtain the idea of how atoms are joined together.
举一反三
- The two atoms of an oxygen molecule are joined together by an ionic bond.
- When different elements are chemically combined, with the atoms held together by chemical bonds, they form chemical__5___.
- A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______
- The forces that hold these atoms together in compounds are called ______ .
- Fill in the blanks with the correct words or phrases from the word bank. 1. Rail cars are joined together with ______________ . 2. ________________ is joined using chains and hooks. 3. The yard master asked the worker to ____________ the incoming freight cars. 4. A buckeye couple relies on ______________ to latch cars together. 5. Because the cars were joined by a _____________ they could not be unlatched easily.