Science( please help)

  In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the 

A. cathode.
B. deflecting plate.
C. anode.
D. grid.

?

The part of the atom that accounts for electricity is the 

A. nucleus.
B. electron.
C. neutron.
D. proton.

B?

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  1. grid, electron.

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    bobpursley

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