An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element?

A. 30 protons, 30 electrons

B. 15 protons, 15 electrons

C. 60 protons, 30 electrons

D. 30 protons, 0 electrons

What is the result when you total the individual percent abundances?

this is the chemical formula for a hydro carbon called propane : C3H3. what does this formula tell you about a molecule of propane

Which of Deeandra observation is scientifically testable

A compound is found to contain 26.96 % sulfur, 13.45 % oxygen, and 59.59 % chlorine by mass.

The discharge reaction that occurs in a nickel-cadmium (nicad) battery is shown below. choose the answer that represents the sum of all the coefficients when this equation is balanced using the smallest whole number coefficients.

What is solubility? 1) solubility is how much solute will precipitate out of solvent 2) solubility is how much solvent will dissolve in solute 3) solubility is how much solid only will dissolve in liquid only

Is burning of coal a reversible change? If yes how?

How many grams of tin are found in 3.5 moles of tin

Determine whether each statement is a description of a physical property or a chemical property. Paper burns readily in air.

Cual es la función de los lípidos?