Ask question

Ask question

All categories

3 years ago

10

Unknown element x has four energy levels, five valence electrons, and is a metalloid. what is elements x?

1 answer:

kykrilka [37]3 years ago

8 0

Answer:

Element X is Arsenic (As)

Explanation:

Elements in the periodic table are either metals, non-metals or metalloids.
Metals are elements that react by losing electrons to obtain a stable configuration and form cation.
Non-metals are those elements that react by gaining electrons to form a stable configuration and form anion.
Metalloids are elements in the periodic table that have both metallic and non-metallic properties.
Examples of metalloids include Selenium, Arsenic, Boron, etc.
Arsenic is a metalloid in period 4 (four energy levels) with five valence electrons.

You might be interested in

What type of particles move to create electicity?<br> electrons<br> protons<br> neutrons

sladkih [1.3K]

the answer is electrons.....

5 0

3 years ago

How long will it take for a 40.0 gram sample of I-131 (half-life = 8.040 days) to decay to 1/100 its original mass? ( PLEASE WIT

masya89 [10]

Idk how long will it

4 0

3 years ago

Numbers 15-21 <br><br> HELP PLEASE!!

bagirrra123 [75]

I wish I could help you, but I cannot see your paper. Please re-upload so I can help you : )

4 0

3 years ago

Read 2 more answers

Balance the following equations:

lesya [120]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2>

(I) $N_{2} + 3H_{2} --> 2NH_{3}$

(II) $P_{4} + 5O_{2} --> 2P_{2} O_{5}$

(III) $2NaF + Br_{2} -->2NaBr + F_{2}$

(IV) $2ZnS + 3O_{2} --> 2ZnO + 2SO_2$

(V) $Pb(NO_3)_2 + 2NaCl --> 2NaNO_3 + PbCl_2$

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>

7 0

3 years ago

Why is it do rare to experience a total solar eclipse?

deff fn [24]

it only happensonce every 7 years

4 0

3 years ago