How is it possible for an element to decay "forward in the periodic table"—that is, to decay to an element of higher atomic number?

A) when the decay is instigated by a collision with a proton
B) as a beta particle is released, a neutron transforms into a proton
C) This only occurs during nuclear fusion.
D) It is not possible. Radioactive decay always results in an isotope with the same or lower atomic number.


B

Environmental & Atmospheric Sciences

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A flower pot of mass m falls from rest to the ground below, a distance h. Which statement is correct?

A) The speed of the pot when it hits the ground is proportional to h. B) The KE of the pot when it hits the ground is proportional to h. C) The KE of the pot when it hits the ground does not depend on m. D) The speed of the pot when it hits the ground depends on m. E) none of the above

Environmental & Atmospheric Sciences

Where is the seaward limit of a beach?

a. Longshore bars b. Berms c. Where the longshore drift is the strongest d. Where the sediment stops moving onshore or offshore

Environmental & Atmospheric Sciences

As of 2015, what is the approximate CO2 level in Earth’s atmosphere?

a. ?100 ppm b. ?200 ppm c. ?400 ppm d. ?800 ppm e. ?1200 ppm

Environmental & Atmospheric Sciences

The average elevation of the depth of the oceans is

A) 875 m (2870 ft.). B) -2070 m (-6790 ft.). C) -3800 m (-12,470 ft.). D) 100 m (325 ft.).

Environmental & Atmospheric Sciences