1. Rank the following elements by increasing atomic radius: carbon, oxygen,
aluminum, potassium
2. When a chlorine atom forms an ion its radius increases, but when a sodium
atom forms an ion its radius decreases. Explain this apparent contradiction.
3. What trend in atomic radius occurs down a group on the periodic table? What
causes this trend?
HELP PLEASE

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

May someone me with these science questions