Answer: [Kr] 5s24d10 is the element Cadmium, Cd. It has 48 electrons.
Explanation:
The gravitational force between two objects is given by :

Where
G is universal gravitational constant
d is the distance between two masses
The gravitational force is inversely proportional to the distance between objects. It means when the distance between objects increases, gravitational force decreases and vice versa. To decrease the gravitational force between two objects, distance must increase.
Answer:
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Explanation:
To mark the upper fixed point, the thermometer is placed in a hypsometer containing water as shown in the figure. The bulb of the thermometer should be outside the water. When the mercury level becomes stationary at a temperature of steam, the level is marked, which represents the upper fixed point of the thermometer.
In the reaction given, 3.07 moles of hexane (C6H14) must burn to form 18.4 mol of carbon dioxide.
<h3>STOICHIOMETRY:</h3>
According to this question, the following balanced equation is given:
2C6H14 + 19O2 → 12CO2 + 14H2O
Based on the above equation, 2 moles of hexane (C6H14) is burnt in oxygen to produce 12 moles of carbon dioxide (CO2).
This means that for 18.4 moles of carbon dioxide to be formed, (18.4 × 2)/12 = 3.07 moles of hexane must burn.
Therefore, 3.07 moles of hexane (C6H14) must burn to form 18.4 mol of carbon dioxide.
Learn more about stoichiometry at: brainly.com/question/9743981
The element is Bromine. Hope I helped. :)