an atom is negatively charged if it has
Objects with more electrons than protons are charged negatively; objects with fewer electrons than protons are charged positively. In this discussion of electrically charged versus electrically neutral objects, the neutron has been neglected. Neutrons, being electrically neutral play no role in this unit. Electrovalence is just another word for something that has given up or taken electrons and become an ion. If you look at the periodic table, you might notice that elements on the left side usually become positively charged ions (cations) and elements on the right side get a negative charge (anions). The protons are positively charged. The neutrons have no charge. The electrons have a negative charge. (The names negative and positive are traditional.) A complete atom is normally balanced, it will have an equal number pf protons and electrons. If an electron is knocked off, the atom is now a positively charged ion. Answer: False. Negatively charged objects have protons; it's just their number of electrons is greater than their number of protons. 3. TRUE or FALSE: An object that is electrically neutral contains only neutrons. See Answer Answer: False Electrically neutral atoms simply possess the same number of electrons as protons. Now it's time to get down to basics. The atomic number of an element, also called a proton number, tells you the number of protons or positive particles in an atom. A normal atom has a neutral charge with equal numbers of positive and negative particles. That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge. Charged objects have an imbalance of charge-either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge-equal numbers of protons and electrons. The principle stated earlier for atoms can be applied to objects. In simple terms, an atom is made up of Protons, Neutrons, and Electrons. Protons have positive charge (+1), Neutrons have no charge (0), and Electrons have negative charge (-1 …). If an atom gains or loses Electrons, it's net charge changes. Charged Objects as an Imbalance of Protons and Electrons. In the previous section of Lesson 1, an atom was described as being a small and dense core of positively charged protons and neutral neutrons surrounded by shells of negatively charged electrons. Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons (none in hydrogen-1). Protons and neutrons are called nucleons. Over 99.94% of the atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, that atom is electrically neutral. If an atom has more or fewer electrons than its atomic number, then it becomes respectively negatively or positively charged as a whole; a charged atom is called an ion. Electrons have been known since the late 19th century, mostly thanks to J.J. Thomson; see history of subatomic physics for details.
More electrons than its atomic number.