Elements 19-36: period 4

18 items · Ages 11+ · In order

18 elements, all in period 4.

Row four holds the first transition metals, the everyday metals of tools, coins and wires: iron, copper, zinc, nickel. Every element in this list is in period 4.

How to learn it

Learn the row in three chunks that match the table's shape: the two s-block metals (K, Ca), the ten transition metals (Sc to Zn), then the six p-block elements (Ga to Kr). For the ten metals, a memory palace works well: ten spots along a workbench, each with its metal doing a job. Watch the odd symbols: K is potassium (Latin kalium) and Fe is iron (Latin ferrum).

Encode make it vivid → Space bring it back on day 1, 3, 7, 21 → Retrieve pull it from your head. From the infographic Remember It on Purpose.

Elements 19-36: period 4

Atomic number	Symbol	Element	Group
19	K	Potassium	1
20	Ca	Calcium	2
21	Sc	Scandium	3
22	Ti	Titanium	4
23	V	Vanadium	5
24	Cr	Chromium	6
25	Mn	Manganese	7
26	Fe	Iron	8
27	Co	Cobalt	9
28	Ni	Nickel	10
29	Cu	Copper	11
30	Zn	Zinc	12
31	Ga	Gallium	13
32	Ge	Germanium	14
33	As	Arsenic	15
34	Se	Selenium	16
35	Br	Bromine	17
36	Kr	Krypton	18

Elements 19-36: period 4: practice sheet

Name: ______________________ Date: ____________ Score: ____ / 18

Atomic number	Symbol	Element	Group
		Potassium
		Calcium
		Scandium
		Titanium
		Vanadium
		Chromium
		Manganese
		Iron
		Cobalt
		Nickel
		Copper
		Zinc
		Gallium
		Germanium
		Arsenic
		Selenium
		Bromine
		Krypton

Write from memory, then check against the study sheet. Mark the misses and review those first next time. · teddyrookbook.com/memory/challenges/elements-19-36/

Sources

Checked October 30, 2026. Progress is kept on this device only (per learner). More lists: all memory challenges · memory games.