2. Atoms & Elements

Which statement is true of atoms?

How many protons are present in a neutral atom of aluminum?

Which subatomic particles are found in the nucleus of an atom?

Which of the following determines the identity of an atom?

Which of the following is closest to the mass of a proton?

Essentially all the elements heavier than iron in our galaxy were formed:

Why do atoms have no overall charge?

An atom has a mass number of 27 and 14 neutrons. What is the atomic number of this atom?

What is the charge of the nucleus of a copper atom?

Which two elements are the most abundant in Earth's crust?

How many protons are present in a neutral atom of bromine?

Which element is most commonly found in the composition of minerals?

What is the mass number of an atom that contains 5 protons and 7 neutrons?

Which statement best describes how electrons are arranged in an atom?

Which of the following is the atomic number of helium?