01-06-2015
Chemistry

Answered

An atom of lithium-7 has an equal number of
(1) electrons and neutrons
(2) electrons and protons
(3) positrons and neutrons
(4) positrons and protons

Answer :

lulu1991 lulu1991

01-06-2015

The answer is (2). The Lithium has 3 protons and 4 neutrons. For every neutral atom, it will have the same number of protons and electrons. Because the proton has one positive charge and electron has one negative charge and neutron does not have charge.

Answer Link

Other Questions

A singlecell amoeba doubles every 3 days how long would it take on amoeba to produce a population of about 10000 amoebae

Which of the following situations would a local government address Presidential Election Trade with other Nations Support of Armed Forces Damaged Streetlights

2211k help solve problem

With which event are Porfirio Díaz Francisco Pancho Villa and Emiliano Zapata associated 1 Conquest of the Incas 2 Argentinian Dirty War 3 Mexican Revolution 4

what is a shape with 3 straight sides and 3 vertices

organisms that feed on dead decaying matter are called

A hat contains the names of seven boys and three girls If one name is drawn from the hat at random PBoy

explain how to find the input given a function rule and output

The blossom of the saguaro cactus is the state flower of Arizona A saguaro cactus can weigh as much as 10 tons about 34 of a saguaros weight comes from the wate

3xy5 2x2y2 solving systems of equations