17 COMPLETE THE CHART Then the teacher will resume the video to allow you to check your answers SUNSTANCE
Pure substance or mixture
Heinent/compound and
Homogeneou/eterejnen
Orarige place without puid
Tap water
AN
Fruit Loops Cereal
24K gold
Distilled water
14K gold

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Explanation:

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

thats how its supposed to be