The atomic mass of carbon-13 is 13. It has six protons. How many neutrons does this isotope have?
2 answers:
Carbon-13 will have 6 protons (because it is carbon), 6 electrons, and 7 neutrons. Isotopes have a different number of neutrons.
Atomic mass is the given by the sum of the number of protons and number of neutron in the nucleus of the atom.
A = P + N
where A = atomic mass of the atom
P = number of protons in the nucleus of the atom
N = Number of neutrons in the nucleus of the atom
Given that :
A = atomic mass = 13
P = number of protons in the nucleus = 6
N = ?
Using the equation
A = P + N
13 = 6 + N
N = 13 - 6
N = 7
hence the isotope has 7 neutrons
You might be interested in
Answer:
The correct solution will be "12.0 A".
Explanation:
The given values are:
By using the transformer formula, we get
⇒ 
⇒ 
On substituting the given values, we get
⇒ 
⇒ 
Answer: 1.5×10^10 N/C
Explanation:
E= F/q
Where E= magnitude of the electric field
F= force of attraction
q= charge of the given body
Given F= 6.5×10^-8 N
q= 4.3× 10^-18 C
Therefore, E = 6.5×10 ^-8/ 4.3×10^-18
E = 1.5×10^10 N/C
i think it’s B. sorry if i’m wrong
Answer:
Da=(1/4)Db
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
When s = Da, t = t
When s = Db, t = 2t
Dividing the two equations
Hence, Da=(1/4)Db
Answer:
C is your answer good luck
Explanation:
