#protactinium
- It lies in 7th period having Z=91
The outer electronic configuration is 6d^17s^2
- d-block element(transition)
So it will form polar covalent bond (2)
#Francium
Outer electronic configuration 7s^1
It will form ionic bond (3)
Surface run off and when water infiltrates land it will start to make its way to a body of water.
Answer:
See explanation
Explanation:
According to Hund's rule, electrons must occur singly first before pairing takes place.
If I want to fill six electrons into orbitals, the filling of electrons will be as follows;
1s2 2s2 2p2.
The first four electrons are filled into the 1s and 2s levels having only one orbital each. The fifth and sixth electrons are filled into 2p orbitals. The 2p level have three degenerate orbitals. The two electrons are singly filled into each of the degenerate orbitals in accordance to Hund's rule.
Pretty sure it's a pressure wave
Answer:
Explanation:
Equilibrium is the state in which the resultant of all forces acting on an object is zero. This implies that the object do not rotate or move, but well balanced at a point. Equilibrium can either be dynamic or static.
When two unbalanced forces act on an object, the object move in the direction of the greater force. This effect nullifies equilibrium of the object.
i. Tim versus Elena and Anne - Unbalanced balanced
⇒ 70 - (100 + 30) = -60N
ii. Elena versus Tim and Anne - Balanced
⇒ 100 - (70 + 30) = 0N
iii. Anne versus Tim and Elena - Unbalanced
⇒ 30 - (70 + 100) = -140N
