Trick For You

This is some useful and easy trick to understand S-Block element in the Periodic Table element, I hope you will like it.

		S-Block
Add_factor	Memory_trick	IA	IIA	Memory trick	Add factor
1	Hi हाय	1 ← H Hydrogen हाइड्रोजन
1+2	Laila लैला	3 ← Li Lithium लिथियम	4 Be → Beryllium बरिलीअम	Bibi बीबी	4
3+8	Na ना	11 ← Na Sodium सोडियम	12 Mg → Magnesium मैग्नेशियम	Maike मइके	4+8
11+8	Kar कर	19 ← K Potassium पोटैशियम	20 Ca → Calcium कैल्शियम	Ci की	12+8
19+18	Rab रब	37 ← Rb Rubidium रूबिडीयाम	38 Sr → Strontium स्ट्रान्शीअम	Subse सबसे	20+18
37+18	Ce से	55 ← Cs Cesium सीज़ियम	56 Ba → Barium बेरियम	Bari बड़ी	38+18
55+32	Frab फरेब	87 ← Fr Francium फ्रैन्सीअम	88 Ra → Radium रेडियम	Rani रानी	56+32
From left to right in periodic table - Atomic radii decrease - Ionization energy increase - Non-metal reactivity increase - Acid character of oxides increase			From top to bottom in periodic table - Atomic radii Increase - Ionization energy decrease - Metallic reactivity increase - Non-metal reactivity decrease - Basic character of oxide increase

	Alkali Metals : Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium(Fr). The name "alkali" derives from an old word meaning "ashes of burned plants". Alkali metals are all shiny, soft and highly reactive. They all have a charge of +1 and can neutralize acids
	Alkaline Earth Metals :Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra). Alkaline earth metals are harder and less reactive than alkali metals. In the middle ages "earth" was any solid substance that did not melt and was not changed by fire into some other substance. Because many alkaline earth compounds have high melting temperatures.

Summary:
IA group element: You can memory the single line to remember this group from top to bottom like this:
हाय लैला ना कर रब से फरेब
For better understand see the above table & understand the how the atomic number increase from Top to Bottom, remember the top most element number which is very easy, then add the factor of 2, 8, 8, 18, 18, 32.

IIA group element: You can memory the single line to remember this group from top to bottom like this:
बीबी मइके की सबसे बड़ी रानी
For better understand see the above table & understand the how the atomic number increase from Top to Bottom, remember the top most element number which is very easy, then add the factor of 8, 8, 18, 18, 32.

This is display cubic made with transparent acrylic sheet and can make with other plastic as per your requirement, other then this, ABS or ABS PC plastic for the other locking part.

Important guidelines for making display cubes for showcase

Use 4 mm transparent Acrylic sheet and cut according to your design [shape & size] with laser cut [for smooth & aesthetic cutting edge], you can cut with conventional machine also but need to care from scratches. and correct dimensions & position of holes if any.

Inside surface in acrylic of your display part you can use the self adhesive film according to your graphics design. [for shiny and aesthetic look]

Assemble easily with 4 bottom plastic part and other 8 nos of side corner plastic part and its lock.

First take base Acrylic sheet which consists 4 holes in the corner and then lock the all 4 side sheet and put 4 corner lock to arrest all the movement of side & bottom sheet.

The height of the example cube is 800 mm so need two person to easy assembly, put 4 L corner locks on the top of the cube and lock it.

Bottom Plastic part you may make through Injection moulding [for mass production] for proto and less quantity you may go for 3D print with ABS plastic or machining. For long life can machining with aluminum and can get different surface treatment and coloring.