4. The cloud of interstellar dust and gas that forms a star is known as

1 answer:

6 0

It's called a nebula or nebulae (plural). They are not only massive clouds of dust, hydrogen and helium gas, and plasma; they are also often “stellar nurseries” – i.e. the place where stars are born.

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We can’t see the pic

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Which structure could a scientist look for in a plant that would identify it as a club moss rather than a liverwort?

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<h3><u>Answer;</u></h3>

Phloem

<h3><u>Explanation;</u></h3>

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<u>Liverworts</u> on the other hand are bryophytes which belongs to the division bryophyta. Bryophytes are small, non-vascular plants which includes mosses, hornworts and liverworts.
<em><u>Vascular plants contain vascular tissues which play an important role of transportation in plants. </u></em>The major vascular tissues are phloem and xylem. <em><u>Non-vascular plants</u></em> on the other hand lacks the vascular tissues for transportation of substances.

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Using the perodic table determine the number of protons for the element Li

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Each atom of an element has the following electron configuration. 1s22s22p63s23p64s23d104p65s24d105p5 What is the name of the el

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Answer;

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Electron configurations are a way of keeping track of the location of the electrons around the nucleus.

Iodine is an element which belongs to the halogen family. The halogen group includes fluorine, chlorine, bromine, astatine, and iodine.

A neutral iodine atom would also have 53 electrons. Its ground state electron configuration would be:

1s22s22p63s23p64s23d104p65s24d105p5

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