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Rainbow [258]
3 years ago
11

What is the group number of the most nonmetallic group that contains metalloids?

Biology
1 answer:
Likurg_2 [28]3 years ago
6 0
Group 13-17 contains metalloids. Boron, Silicon germanium, Arsenic, Antimony, Tellurium and Polonium are considered metalloids. They have properties of both metal and non metal. Some of the element are good semi-conductors .
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The compound sodium chloride is formed by which kind of bond? Covalent bond ionic bond hydrogen bond sodium bond
ehidna [41]

<u>Answer</u>: Ionic bond

<u>Explanation</u>:

  • An ionic bond is a type of a chemical bond formed by the complete transfer of electrons from one atom to another atom i.e one of the atoms loses its electrons and the other gains it. This results in the formation of 2 oppositely charged ions.
  • In sodium chloride, sodium loses one electron from its outermost shell (valence shell) whereas chloride gains it. Due to this sodium gains, a net positive charge and chloride gain a net negative charge.
  • So, due to the complete transfer of electrons that takes place from sodium to chloride, the compound generated (Sodium chloride) has an ionic bond.
7 0
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<span>The right answer is D. males have only one copy of the X chromosome.

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7 0
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Bad White [126]
Starements that are guaranteed to be true are called facts
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Masteriza [31]
They surround and engulf foreign objects and organisms- process called phagocytosis
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The correct answer is: A. A watery mixture of partially digested food released by the stomach into the intestines

Chyme or chymus is formed in the stomach, during the process of digestion (it takes 40 minutes to 3 hours to be produced) , and it is transported to the small intestine-duodenum.

In the beginning of the digestion (in the mouth), mixture of food and saliva called bolus, is formed. Mechanical and chemical breakdown of a bolus creates chime which is ready for the extraction of nutrients from it.

6 0
3 years ago
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