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Define matter and elements; Describe the interrelationship between protons, neutrons, and electrons; Compare the ways in which electrons can be donated or shared between atoms; Explain the ways in which naturally occurring elements combine to create molecules, cells, tissues, organ systems, and organisms
Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams. Scientists define this amount of mass as one atomic mass unit (amu) or one Dalton. Although similar in mass, protons are positively charged, while neutrons have no charge.
15 maj 2022 · The nucleus of the atom of the element helium (He) has two protons (hence helium has an atomic number of 2) and two neutrons. Neutrons have the same weight as protons but no electrical charge. The helium atom has two electrons so that, once again, the atom as a whole is neutral.
Atoms, which consist of protons, neutrons, and electrons, are the smallest units of an element that retain all of the properties of that element. Electrons can be donated or shared between atoms to create bonds, including ionic, covalent, and hydrogen bonds, as well as van der Waals interactions.
Atoms, which consist of protons, neutrons, and electrons, are the smallest units of an element that retain all of the properties of that element. Electrons can be donated or shared between atoms to create bonds, including ionic and covalent bonds.
Define matter and elements. Describe the interrelationship between protons, neutrons, and electrons. Use atomic number to determine electron configuration.
Elements, such as helium, depicted here, are made up of atoms. Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus. Protons and neutrons have approximately the same mass, about 1.67 × 10 –24 grams.
