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Periodic Table & Atoms

Community · Medium · 20–30 min

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A medium-difficulty periodic table and atoms review covering structure, layout, families, trends, and ions for high school students. Built for Grades 8-10. 25 ready-to-play clues, no prep needed. This is a Grades 8–10 Science review game in a Jeopardy-style format: a teacher puts the board on one screen, teams pick clues by point value, and the class answers out loud — no student devices or accounts needed. Categories: Atomic Structure, Table Organization, Element Families, Periodic Trends, Ions & Isotopes.

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Questions in this game

A peek at what's on the board — 5 categories and one sample clue from each. Answers stay hidden until you open them, so the game still works.

  • Atomic Structure

    Which subatomic particle has a positive charge?

    Show answer

    Proton

    +4 more clues in this category

  • Table Organization

    What are the horizontal rows on the periodic table called?

    Show answer

    Periods

    +4 more clues in this category

  • Element Families

    Which Group 18 family is very unreactive gases?

    Show answer

    Noble gases

    +4 more clues in this category

  • Periodic Trends

    What is an atom’s attraction for bonding electrons called?

    Show answer

    Electronegativity

    +4 more clues in this category

  • Ions & Isotopes

    Atoms of the same element with different neutron counts are called what?

    Show answer

    Isotopes

    +4 more clues in this category

Board content

Atomic Structure

$100 — Which subatomic particle has a positive charge?
Proton
$200 — The center of an atom is called what?
Nucleus
$300 — What number equals the protons in an atom?
Atomic number
$400 — Electrons occupy regions called what around the nucleus?
Energy levels
$500 — How many electrons can the first energy level hold?
Two

Table Organization

$100 — What are the horizontal rows on the periodic table called?
Periods
$200 — What are the vertical columns on the periodic table called?
Groups
$300 — Most metals lie on which side of the stair-step line?
Left side
$400 — Elements in the same group share what in common?
Number of valence electrons
$500 — Which section includes groups 3-12?
Transition metals

Element Families

$100 — Which Group 18 family is very unreactive gases?
Noble gases
$200 — Which Group 1 family contains very reactive soft metals?
Alkali metals
$300 — Which Group 17 family readily forms salts with metals?
Halogens
$400 — Which Group 2 family forms +2 ions?
Alkaline earth metals
$500 — What is the f-block row starting with cerium called?
Lanthanides

Periodic Trends

$100 — What is an atom’s attraction for bonding electrons called?
Electronegativity
$200 — Across a period, ionization energy generally does what?
Increases
$300 — Down a group, atomic radius generally does what?
Increases
$400 — Which element is most electronegative on the table?
Fluorine
$500 — Where on the table are the most reactive metals located?
Bottom left

Ions & Isotopes

$100 — Atoms of the same element with different neutron counts are called what?
Isotopes
$200 — An atom that gains electrons forms what type of ion?
Anion
$300 — What stays the same for all isotopes of an element?
Number of protons
$400 — The net charge on an ion equals protons minus what?
Electrons
$500 — What charge does nitrogen usually form as an ion?
3-

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