Chemistry, 15.11.2019 14:31 emmapizano
What parts of dalton’s atomic theory no longer agree with the current picture of the current picture of the atom? provide an answer using at least 3 to 4 complete content related sentences in your own words.
if an element has 12 protons and 17 neutrons, how many electrons must it have?
why are the atomic masses of elements usually decimal numbers? provide an answer using 3 – 4 sentences in your own words.
Answers: 3
Chemistry, 22.06.2019 12:40
Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid
Answers: 1
Chemistry, 22.06.2019 15:10
The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?
Answers: 2
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
What parts of dalton’s atomic theory no longer agree with the current picture of the current picture...
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