How many protons and neutrons in boron-11?

The number of which type of particle determines the identity of an element?

The sum of the protons and neutrons in an atom.

Identifies the type of element and also gives you the number of protons.

Which describes an atom with an atomic number of 17

Which describes an atom with an atomic number of 6

Identify the atom with the atomic number 19

An atom has 20 protons, 20 electrons, and 20 neutrons. What is its mass number?

Which of the following statements best describes the nucleus of a neutral atom in terms of density and charge?

Atoms of the same element with different numbers of neutrons are called ____.

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