This chart lists four elements from the periodic table.
2 answers:
Answer: d. iodine and calcium
Explanation: Ionic bonds are formed by transfer of electrons between metal and non metals.
Covalent bonds are formed by sharing of electrons between non metals
Electronic configuration of calcium:
Calcium atom will lose two electron to gain noble gas configuration and form calcium cation with +2 charge.
Electronic configuration of iodine:
Iodine atom will gain one electron to gain noble gas configuration and form iodide ion with -1 charge.
In calcium iodide the one electron from calcium metal gets transferred to iodine atom and thus form an ionic bond to give
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Answer:- 1467 K
Solution:- It asks to calculate the kelvin temperature of the light bulb. Looking at the given info, it is based on ideal gas law equation, PV=nRT.
Given:
V = 75.0 mL = 0.0750 L
P = 116.8 kPa
We know that, 101.325 kPa = 1 atm
So,
= 1.15 atm
R is universal gas constant and it's value is .
T = ?
Let's plug in the values in the equation and solve it for T.
0.08625 = 0.00005878(T)
T = 1467 K
So, the temperature of the light bulb would be 1467 K.