WebMar 17, 2024 · atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As … WebThe statement that the first ionization energy for an oxygen atom is lower than the first ionization energy for a nitrogen atom is a. Incorrect b. Consistent with the general trend relating changes in ionization energy across a period from left to right, because it is easier to take an electron from an oxygen atom than from a nitrogen atom c. Inconsistent with the …
Chapter 4 - Atoms & Elements Flashcards by vi kay Brainscape
WebWhen a stable atom gains or loses an electron, it becomes an ion. For example, when chlorine takes an electron from sodium, and sodium gives that electron to chlorine, they become ions and form NaCl. Sodum is a cation (lost an electron and became positive) and chlorine is an anion (gained an electron and becomes negative) in this situation. WebMay 7, 2024 · Hydrogen atom with a proton in the nucleus and an orbiting electron. The proton's primary characteristics are mass or m p (1 atomic mass unit (AMU)) and charge (+1) — also commonly denoted by ... philly mall shooting
Chem C2HW-B Flashcards Quizlet
WebA) An oxygen atom combines with 1.5 hydrogen atoms to form water molecules. B) Two oxygen atoms combine with a carbon atom to form carbon dioxide molecules. C) All carbon atoms are identical. D) Helium atoms can be split into two hydrogen atoms. 1. Most of the atom's mass and all of its positive charge are contained in a small core called the ... WebMar 19, 2024 · An atom is considered to be electrically neutral if it has an equal number of protons and electrons. If an atom has a different number of electrons and protons, it is called an ion. An important principle to know is electrons may be transferred from one atom to another or even shared between atoms (allowing atoms to bind together). WebAn atom has a tiny, positively charged nucleus at its center. The positive charge is due to the presence of protons in the atom. Electrons are spread throughout the empty space around the nucleus of the atom. The number of electrons in an atom is equal to the number of protons in an atom, keeping the atom electrically neutral. philly mag weddings