Your best friend has missed the last two weeks of school while traveling through Europe with their family. You recently received a letter from them asking you to explain what we have been working on in class so they could catch up. Write a letter to your friend explaining atomic radii, ionization energy and electronegativity. Include an explanation of the trends for each as you move across and down the periodic table. Remember they're really behind so be thorough and in depth.

i am going to put the answers in order i dint feel like typing it out so yeah

a

d

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a

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d

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

answer: mole of the gas

answer: mole of the gasexplanation:

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;