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KengaRu [80]
2 years ago
8

How many inner shell electrons does beryllium have?

Chemistry
2 answers:
stepladder [879]2 years ago
8 0
Beryllium has two inner shell electrons
olchik [2.2K]2 years ago
5 0
And two 2s electrons in the Be atom. Its electron configuration is thus 1s22s2or[He]2s2 The symbol [He] denotes the inner shell of two 1s electrons which have the same configuration as the noble gas He. The beryllium atom is noticeably smaller than the lithium atom
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Can someone please help me with this ASAP, this is due today, please please help me with this.
hichkok12 [17]

Answer:

this is fairly simple if you have a periodic table with you.

Explanation:

atomic number 17 is Cl mass numer is 35.45 for protons neutron and electron you can just look that up on google. atomic number is where it is at on the periodic table and the mass number is in the little square at the bottom.

5 0
2 years ago
Distillation is used to separate _____.
Art [367]
Distillation is the process of separating homogeneous mixtures -and  a solution is a homogenous mixture, so this is the correct answer!

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6 0
3 years ago
Read 2 more answers
How many grams of PH3 will be produced if 6.0 l of H2 are used?
elena-s [515]

Mass of PH3= 6.086 g

<h3>Further explanation</h3>

Given

6.0 L of H2

Required

mass of PH3

Solution

Reaction

P4 + 6H2 → 4PH3

Assumed at STP ( 1 mol gas=22.4 L)

Mol of H2 for 6 L :

= 6 : 22.4 L

= 0.268

From the equation, mol PH3 :

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= 4/6 x 0.268

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Mass PH3 :

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5 0
2 years ago
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dalvyx [7]

Answer:

38.152 g NaCl would be produced.

Explanation:

\frac{(23 + 35.5) \times 15}{23}  \\  = 38.152 \:  \: g

<u>M</u><u>a</u><u>r</u><u>k</u><u> </u><u>me</u><u> </u><u>as</u><u> </u><u>Brainliest</u><u> </u>

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cluponka [151]

Answer:

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Explanation:

5 0
2 years ago
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