Answer:
(a) 5s. n = 5. Sublevel s, l = 0. Number of orbitals = 1
(b) 3p. n = 3. Sublevel p, l = 1. Number of orbitals = 3
(c) 4f. n =4. Sublevel f, l = 3. Number of orbitals = 7
Explanation:
The rules for electron quantum numbers are:
1. Shell number, 1 ≤ n
2. Sublevel number, 0 ≤ l ≤ n − 1
So,
(a) 5s. n = 5, shell number 5. Sublevel s, l = 0. Number of orbitals = 2l +1 = 1
(b) 3p. n = 3, shell number 3. Sublevel p, l = 1. Number of orbitals = 2l +1 = 3
(c) 4f. n =4, shell number 4. Sublevel f, l = 3. Number of orbitals =  2l +1 = 7
 
        
             
        
        
        
Answer:
The Law of Conservation of Mass states that mass is neither created nor destroyed in chemical reactions. Since the number and type of atoms in the reactant side of the chemical equation are the same as on the product side, the Law of Conservation of Mass has been demonstrated.
Explanation:
In the answer.
 
        
             
        
        
        
Answer:
a b d
these are part of an ecosystem or can be 
 
        
             
        
        
        
Answer:
d. add another d-cell to the circuit
Explanation:
To make the electromagnet pick something, the student should add another d-cell to the circuit. 
Simply, the electromagnet set up is generating very weak magnetic fields. 
- To produce an electromagnet, there must be an interaction between electric fields an conductor. 
- As the wire turns around in the vicinity of the electric field, it induces magnetism. 
- The number of turns of wire here is pretty considerable. 
- But the electric field is very weak. 
- Additional d-cell in the circuit will circumvent this problem