Which statement is not included in the cell theory? a All cells have a nucleus. b Cells are the basic unit of structure. c All organisms are made up of at least one cell. d Cells come from cells that already exist.

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction

Which of these is an intensive property of a substance