When an atom that has no charge loses three electrons, it becomes a positive ion.

negative ion.

positive isotope.

negative isotope.

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

What is formed when amino acids form long chains or polymerize

Which of the following statements is true? an atom consists of protons, electrons, and neutrons.an atom consists of protons and neutrons.an atom consists of electrons bonded to one another.an atom consists of protons bonded to one another.