2. Atoms & Elements

What is the atomic number of boron?

An ion has 106 electrons, 162 neutrons, and a nuclear charge of +108. What is the mass number of this ion?

All atoms of a given element have the same ________.

Which process is primarily responsible for the formation of elements heavier than iron in the universe?

Which of the following best describes what the atomic number of an element represents?

Which of the following best describes how elements and compounds are identified?

What is the smallest particle of an element that still retains all the properties of the element?

Which type of electric charge is carried by electrons in an atom?

Which element has an atom with 53 protons and 74 neutrons?

Which of the following is the smallest particle of an element that still retains the chemical properties of that element?

Which term refers to the positively charged center of an atom?

Which of the following correctly describes how to calculate the number of neutrons in an atom?

What is the atomic number (Z) of the isotope 7_3Li?

Which element has more protons in its nucleus: sulfur or iodine?

How many protons are present in a lithium atom?