Flashcardizz TEST: Periodic Table Basics

Front

What are valence electrons?

Back

Valence electrons are the outermost electrons of an atom that are involved in chemical bonding.

Front

How many Families/Groups are there in the periodic table?

Back

There are 18 Families/Groups in the periodic table.

Front

How many valence electrons does Phosphorus have?

Back

Phosphorus has 5 valence electrons.

Front

What does the atomic number represent?

Back

The atomic number represents the number of electrons and protons in an atom.

Front

How many electrons can the first energy level hold?

Back

The first energy level can hold 2 electrons.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons in the nucleus.

Front

What are periods in the periodic table?

Back

Periods are the horizontal rows in the periodic table, indicating the number of energy levels in the atoms.

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.