atomic number 69

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The term "atomic number 69" refers specifically to the element Thulium. Here’s a simple breakdown to help you understand this term better.

Definition:

• Atomic Number 69: This is the number that tells you how many protons are in the nucleus of an atom of Thulium. It is a soft silvery metallic element that belongs to the group of elements known as rare earth metals.

Usage Instructions:

• You can use "atomic number 69" when discussing chemistry or elements on the periodic table. For example, in a science class, you might say, "Thulium, which has the atomic number 69, is used in some medical equipment.”

Example:

• "Thulium, with an atomic number of 69, is important for making certain types of x-ray machines."

Advanced Usage:

• In more scientific contexts, you might encounter discussions about Thulium's properties, such as its isotopes and how they emit x-rays. For example, "The isotope of Thulium that emits x-rays is beneficial for diagnostic imaging."

Word Variants:

• The word "Thulium" itself can be seen as a variant of "atomic number 69." There are no direct variants of "atomic number 69" since it's a specific term.

Different Meanings:

• "Atomic number" generally refers to the number of protons in any element, not just Thulium. So, while "atomic number 69" specifically refers to Thulium, "atomic number" is a broader term used across the periodic table.

Synonyms:

• There aren’t direct synonyms for "atomic number 69," but you might refer to it simply as "Thulium" in casual conversation.

Idioms and Phrasal Verbs:

• There are no idioms or phrasal verbs that specifically relate to "atomic number 69," as it is a technical term.

Summary:

In summary, "atomic number 69" specifically refers to the element Thulium, which is a rare earth metal used in some medical technologies.

Academic

Noun

1. a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime

Synonyms

• thulium
• Tm