Si un átomo tiene una masa atómica de 12 y un numero atómico de 6 ¿cuantos protones tiene? si un átomo tiene una numero atómico de 12 y 22 neutrones ¿cual es la masa atomica?

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

Write the overall equation for the reaction for lithium battery

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