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Ivenika [448]
3 years ago
15

Which of the following has the largest atomic radius: calcium, beryllium, barium, and strontium

Chemistry
1 answer:
avanturin [10]3 years ago
3 0
I'm not 100% sure but I think it's strontium
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What physical meaning is attributed to ψ², the square of the wave function?
Zigmanuir [339]

Answer:

The probability density (ψ2)

Explanation:

Indicates the probability of finding the electron in a certain region of space when it is squared ψ2.

This means that define2 defines the distribution of electronic density around the nucleus in three-dimensional space; a high density represents a high probability of locating the electron and vice versa.

The atomic orbital, can be considered as the electron wave function of an atom.

APPLICATIONS:

1.- Specify the possible energy states that the electron of the hydrogen atom can occupy and identify the corresponding wave functions medio, by means of a set of quantum numbers, with which an understandable model of the hydrogen atom can be constructed.

2.- It does not work for atoms that have more than one electron, but the problem is solved using approximation methods for polyelectronic atoms.

3 0
3 years ago
Which of these has the most covalent character? <br> NaF <br> Caf2 <br> Bef2 <br> CsF <br> SrF2
VLD [36.1K]
Bef2 is the compound that has the most covalent character. Whichever element has the greatest electronegativity has the least difference and most covalent character. 
6 0
3 years ago
Read 2 more answers
13. An aerosol spray can of deodorant with a volume of 0.410 L contains 3.0 g of propane gas (CH3) as propellant. What is the pr
qaws [65]

Answer: The pressure in the can is 4.0 atm

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = ?

V = Volume of gas = 0.410 L

n = number of moles = \frac{\text {given mass}}{\text {Molar mass}}=\frac{3.0g}{44.1g/mol}=0.068mol

R = gas constant =0.0821Latm/Kmol

T =temperature =20^0C=(20+273)K=293K

P=\frac{nRT}{V}

P=\frac0.068mol\times 0.0820 L atm/K mol\times 293K}{0.410L}=4.0atm

Thus the pressure in the can is 4.0 atm

8 0
2 years ago
Motion of falling object towards the earth is variable motion
slamgirl [31]

Answer:

Yes , it is due to gravity , structure of earth,air resistance so ...

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The ____ is the time required for one half of the atoms of a radio scope to ____.
mash [69]
First blank is: Half-Life
Second Blank is: decay into its products
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3 years ago
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