Which statement describes the general trends in atomic radius and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (1) Atomic radius increases, and first ionization energy decreases.

(2) Atomic radius decreases, and first ionization energy increases.

(3) Atomic radius and first ionization energy both increase.

(4) Atomic radius and first ionization energy both decrease.

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

What is the most stable monatomic ion formed from nitrogen

What can be found in the ionosphere