Rutherford investigated atoms by firing small, positively charged particles at a thin sheet of gold foil. what results would he expect to see if he believed thomson’s model of the atom to be correct? all of the particles would bounce back from the front of the foil because the atom was a dense, solid ball of matter. most of the particles would pass straight through the foil because the atom was mostly the empty space in the electron cloud. most of the particles would pass through at a small angle because the atom is mostly empty space, but with a massive, dense, positively charged center. most of the particles would pass through with a few moving at small angles because the atom was a low-density, positive material with electrons in it.
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Chemistry, 22.06.2019 12:00
1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c
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Chemistry, 22.06.2019 13:30
How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.
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Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 22.06.2019 21:30
An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.
Answers: 1
Rutherford investigated atoms by firing small, positively charged particles at a thin sheet of gold...
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