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3 years ago

Identify each section of the periodic table. metals nonmetals metalloids

Chemistry

2 answers:

Len [333]3 years ago

8 0

Answer:

i added this table for some help

Explanation:

here are some examples

metals:They are hard and shiny, strong, and easy to shape. They are used for many industrial purposes. This group includes iron, gold, silver, chromium, nickel, and copper, some of which are also noble metals.

non-metals:a chemical element (as boron, carbon, or nitrogen) that lacks the characteristics of a metal and that is able to form anions, acidic oxides, acids, and stable compounds with hydrogen.

metalloids:Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. Metalloids have mixed properties which are difficult to characterize.

kramer3 years ago

7 0

Answer:

Answer is in the image below. (For Edmentum and Plato users)

Explanation:

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3 years ago

A neutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and electrons are found within th

djverab [1.8K]

•The atomic number of an atom is the number of protons it has. If the atomic number is 20 then we know the atom has 20 protons.

•The mass number of an atom is the total number of protons and neutrons the atom contains. The mass number is 41 and the number of protons is 20, just subtract 20 from 41 and you will get the number of neutrons: 41 - 20= 21. The atoms has 21 neutrons.

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3 years ago

What's is the mass of 0.500 mol NH3

Setler [38]

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8.5155g NH3

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