Metals are usually givers of electrons.
<u>Answer:</u> The wavelength of the photon is 486.2 nm and it lies in the visible region
<u>Explanation:</u>
To calculate the wavelength of light, we use Rydberg's Equation:
Where,
= Wavelength of radiation
= Rydberg's Constant = 
= Higher energy level = 4
= Lower energy level = 2
Putting the values in above equation, we get:
Converting this into nanometers, we use the conversion factor:
So, 
As, the range of wavelength of visible light is 400 nm - 700 nm. So, the wavelength of the given photon lies in the visible region
Hence, the wavelength of the photon is 486.2 nm and it lies in the visible region
Answer:
0.54 J/goC
Explanation:
Recall that we define the heat transferred as ;
H= mcθ
Where;
H= heat transferred = 112300J
m= mass of the metal= 240g or 0.24 Kg
c= specific heat capacity of the metal = the unknown
θ= change in temperature = (880°C-13°C) = 867°C
Substituting values and making the specific heat capacity the subject of the formula;
c= H/mθ
c= 112300/ 240×867
c= 0.54 J/goC
Hence, the specific heat capacity of the metal is 0.54 J/goC.
Answer:
The energy released during the sudden ground motion comes from a build up over long periods of time, as a result of tectonic forces within the earth. Plate boundaries are made up of many faults. The edges of these faults are not smooth like a table top but are rough
Explanation:
thank you for the work
Answer:
²⁵₁₁Na⁺
Explanation:
Details about the atom:
Number of electrons = 10 electrons
Number of neutrons = 14 neutrons
Number of protons = 11 protons
The atomic number of an atom is a good indicator of the type of atom we have been given.
From the subatomic particles, the number of protons is the same as the atomic number.
Since the number of protons is 11, its atomic number will be 11.
The element with atomic number 11 is sodium, Na.
To write a complete notation, we also need the mass number;
Mass number = number of protons + number of neutrons
Mass number = 11 + 14 = 25
The charge on the atom:
Charge = Number of protons - number of electrons = 11 - 10 = 1+
The element in isotopic notation is given as;
²⁵₁₁Na⁺
