Answer:
The gain of an electron adds more electrons to the outermost shell which increases the radius because there are now more electrons further away from the nucleus and there are more electrons to pull towards the nucleus so the pull becomes slightly weaker than of the neutral atom and causes an increase in atomic radius.GOOD LESSONS ♡
Answer:
4.8 h
Explanation:
The meal contains 53.0 grams of fat. If fat provides 38 kJ/g, the energy supplied is:
53.0 g × 38 kJ/g = 2.0 × 10³ kJ
The meal contains 38.0 grams of protein. If protein provides 17 kJ/g, the energy supplied is:
38.0 g × 17 kJ/g = 6.5 × 10² kJ
The meal contains 152 grams of carbohydrate. If carbohydrate provides 17 kJ/g, the energy supplied is:
152 g × 17 kJ/g = 2.6 × 10³ kJ
The total energy supplied is:
2.0 × 10³ kJ + 6.5 × 10² kJ + 2.6 × 10³ kJ = 5.3 × 10³ kJ
Swimming burns 1100.0 kJ/hour. The time required to burn 5.3 × 10³ kJ is:
5.3 × 10³ kJ × (1 h/1100.0 kJ) = 4.8 h
Answer:
WHY: You can abbreviate an element's electron configuration using the noble gas notation method because when you get down to the lower elements, specifically the d's and the f's, the electron configuration will be very long. The noble gas notation method is a faster answer while also being correct.
HOW: We can abbreviate an element's electron configuration by finding the last noble gas a specific element passed, for example calcium would have just passed Argon. Once you have the "address" of the previous noble gas, then you add on the difference between the element chosen and the noble gas, for example calcium would be [Ar] 4s^2.
Explanation:
