atomic number 78

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The term "atomic number 78" refers to the chemical element platinum. Here's a simple breakdown to help you understand it better:

Definition:

Atomic number 78 is the specific number assigned to platinum in the periodic table of elements. It tells you how many protons are in the nucleus of a platinum atom. Platinum is a heavy, precious metal that is grey-white in color and does not rust or corrode easily.

Usage Instructions:

• You can use "atomic number 78" when discussing elements in chemistry, especially when talking about platinum.
• In everyday conversation, you might just say "platinum" instead of using the atomic number.

Example Sentence:

• "Platinum, which has an atomic number of 78, is often used in jewelry because of its beauty and resistance to tarnishing."

Advanced Usage:

In scientific contexts, you might see "atomic number 78" used in discussions about chemical reactions, properties of metals, or in the context of metallurgy.

Word Variants:

• Platinum: This is the common name for the element with atomic number 78.
• Platinic: Adjective form that describes compounds or reactions related to platinum.

Different Meanings:

• While "atomic number 78" specifically refers to platinum in chemistry, "atomic number" itself is a broader term that applies to any element in the periodic table, each with its own unique number of protons.

Synonyms:

• Precious metal
• Noble metal (because platinum is resistant to corrosion and oxidation)

Idioms and Phrasal Verbs:

While "atomic number 78" does not have idioms or phrasal verbs directly associated with it, you might encounter phrases like: - "Worth its weight in platinum" (meaning something is very valuable). - "Platinum standard" (referring to the highest quality or level of something).

Summary:

• Atomic number 78 = Platinum
• It is a grey-white, precious metal known for its resistance to corrosion.
• Commonly used in jewelry, electronics, and as a catalyst in chemical reactions.

Academic

Noun

1. a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits

Synonyms

• platinum
• Pt