Answer: emission spectrum
Explanation:
Answer:
- <em>The kinetic energy in J of an electron moving at 6.00 × 10⁻⁶ m/s is:</em>
<em> </em><u>1.64 × 10 ⁻³⁸ J</u>
<em />
Explanation:
<u>1) Data:</u>
a) KE =?
b) v = 6.00 × 10⁻⁶ m/s.
c) m = 9.11 × 10⁻²⁸ g.
<u>2) Formula:</u>
<u>3) Solution:</u>
- KE = (1/2) = (1/2) × 9.11 × 10⁻²⁸ g × ( 6.00 × 10⁻⁶ m/s)² = 163.98 × 10 ⁻⁴⁰ J
Answer:
LiF (lithium fluoride)
Explanation:
Lithium ions have a charge of +1 and fluoride ions have a charge of -1. The formula unit for lithium fluoride is LiF, which means that the lithium and fluoride ions are present in a 1:1 ratio. So the positive and negative charges cancel each other, and the compound lithium fluoride is neutral.
I not getting the value but I know the equation it is NO OF MOLECULES =AVAGADROS CONSTANT *NO OF MOLES
The mass number of the element is 79 , atomic number is 34 and number of neutron is 45
<h3>What is Atomic Number ?</h3>
The number of proton which is used to separate one element from the other element is called Atomic Number. It is denotes as symbol Z.
What is Atomic Notation ?
The atomic number is the number of proton which is present in the nucleus of an atom. It is represented as .
where
X is the element
Z is the atomic number of that element.
A is the mass number of that isotope.
Now,
A = Z + N
79 = 34 + N
79 - 34 = N
45 = N
Thus from the above conclusion we can say that mass number of the element is 79 , atomic number is 34 and number of neutron is 45
Learn more about the Atomic Number here: brainly.com/question/487717
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