How was the work of newlands similar to that of mendeleev on the periodic table?
a)they both...
Chemistry, 22.08.2019 08:30 yungdaggerdic4543
How was the work of newlands similar to that of mendeleev on the periodic table?
a)they both arranged the elements in order of increasing atomic mass.
b)they both arranged elements that had similar properties into groups.
c)they both predicted the positions of undiscovered elements on the table.
d)they both placed the relative atomic mass of each element on the table.
Answers: 2
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Nonpoint source pollution is difficult to control because it
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Which statement accurately represents the arrangement of electrons in bohr’s atomic model?
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Chemistry, 23.06.2019 05:30
The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.
Answers: 3
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