An original Protactinium (Pa) Atomic Number 91 Periodic Table of Elements Design.
Protactinium or protoactinium (former name) is a chemical element with symbol Pa and atomic number 91. It is a dense silvery-gray metal which readily reacts with oxygen water vapor and inorganic acids. It forms various chemical compounds where protactinium is usually present in the oxidation state +5 but can also assume +4 and even +3 or +2 states.
Fitted, comfortable, and soft—this t-shirt was made just for you. And it can withstand several washings while maintaining its shape, so it’s great for everyday wear!
• 100% fine jersey cotton
• Heather grey is 90% cotton, 10% polyester
• Fabric weight: 4.3 oz/y² (146 g/m²)
• Shoulder-to-shoulder taping
• Made in the USA
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