For a doubly ionized lithium atom Li2+ (Z = 3), what is the principal quantum number of the state in which the electron has the same total energy as a ground-state electron has in the hydrogen atom?

real, smaller and upside-down.   so the answer should be b.

the answer is kevlar

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation