2 years ago

In the first step in the life cycle of a star, it is called a:

Chemistry

1 answer:

KengaRu [80]2 years ago

7 0

Its called a protostar. This chemical change gives off a large amount of energy in the form of heat.

Brainiest plx

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3 years ago

4. Which atomic particles are found inside the nucleus of an atom?

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Explanation:

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Rank the following elements in order of decreasing atomic radius (1 is biggest, 5 is smallest)

AlexFokin [52]

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. The atomic radius in decreasing order is Bi>Sb>As>N>O.

<h3>What is periodic table?</h3>

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Along the period, the size of elements decreases. Down the group the size of elements increases. The atomic radius in decreasing order is Bi>Sb>As>N>O.

Therefore, atomic radius in decreasing order is Bi>Sb>As>N>O.

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1 year ago

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there are 8 moon phases.

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3 years ago

Find the "density" of a copper sample whose mass is 134.4 grams and whose volume is 15.0mL

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