What are atoms most made of? Every atom is composed of anucleusand one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons. More than 99.94% of an atom's mass is in ...
An atom has three types of very tiny particles called protons, neutrons and electrons. The center of an atom is called the nucleus, and it is made up of protons and neutrons. The electrons in an atom fly around and above the nucleus in a cloud-like formation. The protons have a positiv...
Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. Adding a proton to an atom makes a new element, while adding a neutron makes an isotope, or heavier version, of that atom. What does the nucleus do? The nuc...
Science Chemistry Atom What is an atom? Explain. Question:What is an atom? Explain. What is Matter?Anything that has mass and takes up space is considered to be matter. It is made up of atoms and molecules, which interact with one another through a variety of interactions to form the ...
Learn about atoms, the fundamental unit of matter in the universe. Discover the different parts of an atom, such as the nucleus, proton, neutron,...
What changes when an ion is made from an atom?A:the number of electrons onlyB:the number of neutrons onlyC:the number of protons onlyD:the number both of protons and of neutrons 相关知识点: 试题来源: 解析 A 考查实际运用。A. 仅电子数量(变化),B. 仅中子数量(变化),C. 仅质子数量(变...
What is the lightest particle of an atom?Atomic Structure:Atoms are the smallest particle of an element. An atom is made of a nucleus and electrons that orbit it. The nucleus is made of two types of particles, protons, and neutrons. Each particle has a different charge, protons are ...
What changes when an ion is made from an atom? A. the number of electrons only B. the number of neutrons only C. the number of protons only D. the number both of protons and of neutrons 相关知识点: 试题来源: 解析 A 考查实际运用。A. 仅电子数量(变化),B. 仅中子数量(变化),C. ...
What is an Atom? What is an atom? – an atom is the smallest possible amount associated with a chemical element. For example, an atom of gold can be called as the smallest quantity of gold you can feasibly have. The word ‘small’ literally points out to nanoscopically tiny! An atom ...
What is the definition of an atom?What is an Atom:In chemistry and physics, matter is refered to any substance that has mass and occupies space by having volume. All matter is made up of small particles. The smallest identifiable that a pure substance can be divided into, and still have...