your current score =3%. experiments by rutherford determined that the atom is mostly empty space ,...
1) According to the Rutherford model of the atom, most of the volume of an atom: a. is empty space. b. was occupied by the nucleus. c. contained positive charges. d. excluded electrons. 2) In contrast to Thomson’s model of the atom, Rutherford’s model: a. had the positive charge spread uniformly through the atom. b. had the positive charge concentrated in a small region. c. was first to explain atoms emitting discrete frequencies. d. eliminated radiation from accelerating charges.
ReviewI Constants Periodic Table The air that surrounds us is mostly empty space, and it can be almost a factor of one thousand less dense than water. Within that mostly empty space, gas molecules are moving around at high speed and colliding with each other, and if you are in an enclosed space, they are also colliding with the walls. We can more easily observe the behavior of a gas by confining it to a container with a known volume,...
3. Electronegativity (the ability of an atom to pull electrons toward itself in a chemical bond) and Ionization Energy (the amount of energy required to remove an electron from an atom) have the same trend on the periodic table. The largest electronegativities and ionization energies are found in the region of the periodic table. Report the letter (A, B, C, etc) of your answer in the space beside the question number. A. upper left B. upper right C. lower left...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
3. Crystallization begins with a process called nucleation, where particles of the substance dissolved in solution begin to aggregate. Crystals then begin to form on these aggregates. Based on this, explain why Steps 3 and 4 in Part III may induce crystallization. Part II: Observations Upuy Describe qualitative changes to solution - Solution went from bright yellow, orange to a mare dacu Orange /ced - hydrogen peroxide is originally clear but tuck's oldcu in the solution. The addition of hydrogen...
with the given information, please answer #3-5! thanks!
ACTIVITY 3 piet of a Barn Owl objective To study the contributions of various prey to the diets of Bam owls. This will be looked at from the perspectives of numbers and biomas Materials Skulls from dissected Barn Owt pellets Owl Prey Chart Procedure There are many genera of prey that occur in both the Northwest and Southeast, as well as several that are exclusive to ane of these areaL. The folowirng...
(a) Which part of an atom is positively charged, and which part is negatively charged? (b) How does the charge of an electron compare with the charge of another electron? (c) How does the charge of an electron compare with the charge of a proton? Can charge be created or destroyed? How does that answer relate to the conservation of charge? How is electric charge similar to mass? How are they different? What are two ways electric charge can be...
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22. A circuit is attached to a, your "A" value. V battery and is found to have a current of. your "B" value, amps. What is the electrical resistance of the circuit? 23. What would be the current in a circuit that has an electrical resistance of, your "C" value, 12 connected to a, your "A" value, V battery? 6V 22 < 4V 24. In which diagram above will the current through the...
where λ is the charge density per unit length on the rod and εο is called the permittivity of free space (it is a universal constant with the value 8.854 x 10-12 F/m (farads per metre)) The integral for the electric field can be evaluated exactly using a method called trigonometric substitution with the result AL We won't learn the method of trigonometric substitution in this course; however, you will approximate the value of the integral using methods we introduced...
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Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...