which size would be best as a poster above a desk?

That will depend on the specifics. If you are looking to utilize this chart as reference in a bedroom environment, then going with either the 15 x 20 or 18 x 24 option is a good choice depending on the wall space available. If this is for a classroom environment then maybe going with the larger 24 x30 chart is the better option.

Are the semimetals featured as being blue or black? (Just asking cause the pictures show two different things)

The Semimetals are blue as in the primary image. The Images showing black must be a faulty render output. Thanks for bringing this to our attention.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Periodic Table Science Poster Large Laminated New 2023 Chart Teaching Supplies Black Classroom Decor Premium Educator Atomic Number Guide 18x24

Periodic Table Science Poster Large Laminated New 2023 Chart Teaching Supplies Black Classroom Decor Premium Educator Atomic Number Guide 18x24

Product ID: 725123459

🎨Color-coded element groups

💧3 mil laminated water & tear resistant

📏18x24 inch large format

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

R$590

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

Description

🧪 Unlock the elements of success with every glance!

VERSATILE PLACEMENT - Perfect for classrooms, home study areas, or kids’ bedrooms to inspire daily learning.
EDUCATOR DESIGNED CLARITY - Clean, easy-to-read layout tailored for teachers and students alike.
CLASSROOM READY DURABILITY - Premium 3 mil lamination protects against spills, tears, and dust for lasting use.
VISUAL LEARNING POWERHOUSE - Color-coded groups simplify complex chemistry for quick element recognition.
GENEROUS SIZE MAXIMUM IMPACT - Large 18x24 inch format ensures readability from across the room or study space.

This 18x24 inch Periodic Table Science Poster features a premium 3 mil laminated finish that resists water, tears, and dust, making it ideal for classrooms and home study. Designed with educators in mind, it uses clear, color-coded groups to simplify chemistry learning and enhance visual retention. Durable and easy to hang, it’s a must-have educational tool for millennial professionals fostering STEM skills in the next generation.

Specifications

ASIN	B07BDHW1F3
Age Range Description	Kid
Amazon Bestseller	#246,517 in Office Products ( See Top 100 in Office Products ) #113 in Class Records & Lesson Books
Brand Name	Young N Refined
Color	multicolor
Color Family	Black
Cover Material	Plastic
Customer Package Type	Standard Shipping Envelopes or Boxes
Customer Reviews	4.6 4.6 out of 5 stars (1,163)
Finish Type	Plastic
Frame Material	Plastic
Frame Type	Unframed
Indoor Outdoor Usage	Indoor
Is Original Artwork	No
Item Dimensions L x W	1L x 457W mm
Item Shape	Rectangular
Manufacturer	Young N Refined
Material	Laminated
Mounting Type	Wall Mount
Number Of Panels	No
Number of Items	1
Orientation	Landscape
Paint Type	Watercolor
Paper Finish	Matte
Pattern	Solid
Product Style	Basic
Recommended Uses For Product	Educational purpose, home/classroom decor
Room Type	Classroom
Seasons	All, Fall
Size	長さ0.1 cm x 幅45.7 cm
Special Features	Durable, water and tear resistant laminate design
Subject Character	Periodic Table
Theme	Education, Digital, Science
UPC	689559055718
Unit Count	1 Count
Wall Art Form	Poster

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.