Atomic Structure Basics Quiz

Atoms are the fundamental building blocks of all matter, meaning everything in the universe is composed of atoms.

The nucleus is the central part of an atom, containing protons and neutrons.

Protons are positively charged particles found in the nucleus.

Neutrons are neutral particles, meaning they have no charge, found in the nucleus.

Electrons are negatively charged particles that orbit the nucleus of an atom.

The atomic mass of an atom is determined by the number of protons and neutrons in its nucleus. It represents the weight of the atom.

A periodic table is a chart that organizes all known elements by their atomic number and properties.

The atomic number of an atom is the number of protons in its nucleus.

A neutral atom has the same number of protons and electrons, meaning its overall charge is zero.

A positively charged atom has more protons than electrons.

A negatively charged atom has more electrons than protons.

Elements are pure substances made up of only one type of atom.

Compounds are substances formed when two or more elements chemically combine in a fixed ratio.

The structure of an atom, with its nucleus and orbiting electrons, determines its chemical properties and how it interacts with other atoms.

Atoms are incredibly tiny and impossible to see with the naked eye.

The number of protons in an atom, determining its position on the periodic table and its chemical identity.

The weighted average mass of an atom of an element, taking into account the different isotopes. It includes the mass of protons and neutrons.

Positively charged particles found in the nucleus of an atom.

Negatively charged particles found outside the nucleus of an atom, in electron shells.

Neutral particles found in the nucleus of an atom, contributing to its mass but not its charge.

An atom with a balanced number of protons and electrons, resulting in no overall charge.

The process of calculating the number of neutrons in an atom by subtracting the atomic number (number of protons) from the atomic mass.

Atoms of the same element that have the same number of protons but different numbers of neutrons.

A region around the nucleus of an atom where electrons are most likely to be found.

The tendency of atoms to gain, lose, or share electrons to achieve a stable electron configuration.

A diagram that shows the arrangement of electrons in an atom, where each shell is represented by a circle and electrons are represented by dots.

The outermost shell of an atom that contains electrons involved in chemical bonding.

The number of electrons in the valence shell of an atom, determining its reactivity.

The state of an atom or molecule where the outer electron shell is completely filled, resulting in stability and reduced reactivity.

The process where atoms lose or gain electrons to achieve a stable electron configuration, forming ions.

A group of people, often with a shared identity and purpose, who live in a specific area.

A gathering place where members of a group meet or spend time together.

A term that refers to a place that is empty or devoid of anything significant.

A group of people who are characterized by their negative qualities or actions.

A group of people who are characterized by their positive qualities or actions.

The central part of an atom, containing protons and neutrons.

The area surrounding an atom where the electrons are found.