2 years ago

Filtration, decantation, and evaporation are examples of

1 answer:

4 0

<span>An element is made of only one kind of atom, while a compound contains the atoms of two or more elements. For example, gold is made of only one kind of atom, so it is an element, but water is a mix of hydrogen and oxygen, so it is a compound.</span>

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Are metal ions larger or smaller than the neutral atoms they came from

NeX [460]

Answer: the metal ions or smaller then the neutral

Explanation:

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3 years ago

Which of the following elements is going to be the most reactive and why? Nitrogen or Oxygen?

bagirrra123 [75]

Answer:

electronegativity

Explanation:

Oxygen will be most reactive

configuration = $1s^22s^22p^4$

As oxygen need only two electrons to complete its octet.

Oxygen will have stronger force than nitrogen as it will tend to pull electrons more to complete its octet. Also along the period electronegativity increases so oxygen has higher electronegativity than nitrogen

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How would this atomic structure change if you built an atom of Krypton which has an atomic number of 36?

jenyasd209 [6]

Answer:

Explanation:

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3 years ago

Consider the group a1 element sodium atomic number 11, the group 3a element aluminum atomic number 13, and the group 7a element

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According to there chemical properties

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3 years ago

How many elements had been discovered by 1860

UkoKoshka [18]

60 elements! I don't exactly know every element known, so if you are asking that, please tell us, but what I do know is that there were 60 elements in the periodic table by 1860.

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3 years ago