Atoms
Periodic Table
Acids/Bases
Challenge
100

Subatomic particle that tells us the identity of an atom

proton

100

Heaviest element on the periodic table

Oganesson (Og)

100

pH of an acid

less than 7

100

Lightest element on the periodic table

Hydrogen

200

An ion has a different _____ from a neutral atom

charge

200
An example of a metalloid

Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium

200

One trait of a strong base

dissociate fully or conduct electricity 

200

KOH dissociates into _____ and _____

K+ and OH-

300

Electrons of an atom are found in the _______ ______

electron cloud
300

Number of protons in a chlorine atom 

17

300

One common item that is basic

blood, baking soda, ammonia, soap, bleach, drain cleaner, etc

300

pH stands for ____________

potential of hydrogen OR power of hydrogen

400

Electron clouds have many shapes. These shapes are called _______

orbitals

400

Element where the table "splits" (aka where the lanthanide series begins)

Barium

400

Acids accept which kind of ion?

Hydrogen ion (H+)

400

One chemical example of a strong acid and one chemical example of a strong base

acid: HCl, HNO₃, HClO₄

base: NaOH, KOH, Ca(OH)2

500

An isotope has a different _______ than a neutral atom

mass

500

The first lanthanide has an atomic mass of _____

140.12 g/mol

500

Process or experiment that chemists use to determine the pH of an unknown acid or base

Titration

500

The modern periodic table was developed by ______ _______

Henry Moseley

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