Astatine. Because it has the smaller shell of electrons. I believe
The molar mass (atomic weight ) of sodium is 23.0 grams/mole and the molar mass of sodium azide, NaN3 , is the mass of sodium, 23.0 gram/mole added to the molar mass of three atoms of nitrogen (14.0 x 3 = 42 gram/mole) which equals 65.0 grams/mole. The percentage of sodium is 23.0 /65.0 x 100 % = 35 %
Answer: B
Explanation:
Graph 1 represents an endothermic reaction, Graph 2 represents an exothermic reaction.
***If you found my answer helpful, please give me the brainliest. :) ****
The difference between all of them in the make-up of the R group.
Answer:they are used to generate sound waves in the ultrasonic range
Explanation:transducers are used to generate sound waves in the ultrasonic range ,by turning electrical energy into sound
