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PolarNik [594]
2 years ago
5

What is the electron configuration of helium

Chemistry
2 answers:
Troyanec [42]2 years ago
6 0
[He]:1s^2
mario62 [17]2 years ago
5 0
The configuration is 1s2 . Hope I answered and helped out! :) 
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A substance through which an electrical current flows poorly would be said to be a poor conductor. That is, the substance has a low conductance (or conductivity). There’s a nuance between the two terms, but it shouldn’t matter for our purposes.

Since such a material resists the flow of electric charge, the material can be said to have a high resistance (or high resistivity).

Mathematically, resistance and conductance are reciprocals of one another; a low conductance implies a high resistance, and a high conductance implies a low resistance.
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8. The level of the water in the open aquarium tank goes down each day. Why?
yan [13]

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Because of evaperation

Explanation:

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An atomic ion has 5 protons and 2 electrons. What is the charge of the ion?
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Explanation:

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2 years ago
Which has more particles? 10.0 g of Carbon or 10.0 g Calcium? How many atoms does each have?
Snezhnost [94]

Answer:

10g Carbon has more particles.

Explanation:

To Find

Which has more particles 10g of C or 10g of Ca

The molar mass of carbon is 12g and Calcium is 40g.

1 mole of  atom , molecule or ions contain Avagadro number (6.022×10∧23) of particles and also have a mass equal to it's molar mass.

For C,

12g C  will have 6.022×10∧23 atoms

10g C will have  \frac{10}{12} ×6.022×10∧23 atoms

=0.833 × 10∧23 atoms

For Ca,

1 mole Ca =40g

40g Ca will have 6.022×10∧23 atoms

10g Ca will have \frac{10}{40} ×6.022×10∧23 atoms

=0.25 × 6.022×10∧23 atoms

7 0
3 years ago
Who tryna answer these for mee
maksim [4K]

Answer:

idk it looks hard

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