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avanturin [10]
4 years ago
10

What family does Eu element belong to?

Chemistry
1 answer:
worty [1.4K]4 years ago
5 0
Row 6 - it’s called Rare earth elements
found in lanthanide series.
Hope this Help
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Magnesium and iron are metallic elements. How does a mole of magnesium compare with a mole of iron?
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Write electron configurations for Gallium, Ga (Z=31), and show the total valence electrons
ivann1987 [24]

<u>Answer:</u> The electronic configuration of gallium is written below and number of valence electrons is 3.

<u>Explanation:</u>

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

Valence electrons are defined as the electrons present in the outermost shell of an atom.

We are given:

An element Gallium having atomic number as 31.

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Electronic configuration of Gallium is: (Z=31):1s^22s^22p^63s^23p^64s^23d^{10}4p^1

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4 years ago
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