Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many protons does a neutral atom have?

Back

In a neutral atom, the number of protons is equal to the number of electrons.

Front

What is a Lewis dot model?

Back

A Lewis dot model is a diagram that shows the valence electrons of an atom as dots around the element's symbol.

Front

What are cations?

Back

Cations are positively charged ions that form when an atom loses one or more electrons.

Front

What are anions?

Back

Anions are negatively charged ions that form when an atom gains one or more electrons.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configurations, and recurring chemical properties.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically good conductors of heat and electricity, while nonmetals are poor conductors and can be gases or brittle solids.

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, which determines its chemical properties.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is a neutral atom?

Back

A neutral atom has an equal number of protons and electrons, resulting in no overall charge.