Center of an atom contains protons and neutrons; what is it called?

Center of an atom contains protons and neutrons; what is it called?

• A. Electron
• B. Nucleus
• C. Periodic table
• D. Symbol

Answer: (B)

The center of an atom is called the nucleus. It holds protons, which are positively charged, and neutrons, which have no charge, all packed into a tiny region that accounts for most of the atom’s mass. The protons and neutrons together are called nucleons, and the strong nuclear force keeps them bound together. Electrons orbit this dense core in the surrounding electron cloud, attracted by the protons’ positive charge. The periodic table is a chart used to organize elements, and a symbol is simply the shorthand for an element. So, the central part containing protons and neutrons is the nucleus.

The center of an atom is called the nucleus. It holds protons, which are positively charged, and neutrons, which have no charge, all packed into a tiny region that accounts for most of the atom’s mass. The protons and neutrons together are called nucleons, and the strong nuclear force keeps them bound together. Electrons orbit this dense core in the surrounding electron cloud, attracted by the protons’ positive charge. The periodic table is a chart used to organize elements, and a symbol is simply the shorthand for an element. So, the central part containing protons and neutrons is the nucleus.