atomic number 25

Friendly

Certainly! The term "atomic number 25" refers to a specific element in the periodic table called "manganese." Let's break this down for a new English learner:

Explanation:

• Atomic Number 25: This means it is the 25th element on the periodic table of elements. Each element has a unique atomic number, which tells us how many protons are in the nucleus of its atoms.
• Manganese: This is the name of the element that has the atomic number 25.

Characteristics:

• Hard and Brittle: Manganese is a strong material, but it can break or shatter easily if too much force is applied.
• Grey Color: Manganese has a grayish appearance.
• Polyvalent: This means manganese can form different types of chemical bonds and can have multiple oxidation states (different charges).
• Resembles Iron: Manganese looks similar to iron but is not magnetic, meaning it does not attract magnets like iron does.
• Used in Steel Making: Manganese is an important ingredient in making steel, which is a strong material used in construction and manufacturing.
• Occurs in Many Minerals: Manganese can be found in various natural minerals, which are substances made from a combination of different elements.

Usage Instructions:

• You can use "manganese" when talking about chemistry, materials science, or when discussing the composition of steel and other alloys.

Example Sentence:

• "Manganese, with atomic number 25, is essential for making strong steel used in buildings and vehicles."

Advanced Usage:

• In advanced discussions, you might encounter phrases like “manganese alloys” or “manganese deficiency” in the context of nutrition, as manganese is also an essential nutrient for living organisms.

Word Variants:

• Manganese (noun): The element itself.
• Manganic (adjective): Pertaining to manganese.
• Manganese dioxide (noun): A common compound of manganese.

Different Meanings:

• In general conversation, "manganese" usually refers to the chemical element. However, in specific contexts (like biology), it can refer to its role as a nutrient.

Synonyms:

• There are no direct synonyms for "manganese" as it is a specific element, but you might hear related terms like “metal” or “element” when discussing it in general terms.

Idioms and Phrasal Verbs:

• There aren’t specific idioms or phrasal verbs that include "manganese," as it's a technical term. However, you might hear phrases like “in the mix” when discussing materials in metallurgy (the science of metals).

Conclusion:

Understanding the term "atomic number 25" as it relates to manganese can help you in science and discussions about materials.

Academic

Noun

1. a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals

Synonyms

• manganese
• Mn