Answer: Option (C) is the correct answer.
Explanation:
The elements of group 2 are also known as alkaline earth metals. Thus, each element of group 2 is an alkaline earth metal.
Group 2 contains six elements from to bottom which are as follows.
Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba) and Radium (Ra). Out of which radium is a radioactive element.
Answer:
hello :)
Explanation:
Water vapor in the air reaches its dew point as it cools in the air around the can, forming <em>liquid</em> <em>drops</em> <em>of</em> <em>water</em>. Condensation is the process where water vapor becomes liquid.
The first shell can hold up to two electrons maximum.
From the periodic table, we can find that hydrogen has only one electron occupying the first shell. Therefore, hydrogen would require an additional one electron to fill up the first shell.
What change did the iv cause
Answer:
Water's high heat of vaporization allows dogs to cool themselves by panting.
Explanation:
Vaporization or Evaporation is the process in which the substance is converted into gas (vapors). This is an endothermic reaction and requires energy to be carried out. In dogs this phenomenon is being carried out in order to cool the body.
As the water molecules are evaporated it results in the removal of highly energetic molecules leaving a low energy molecules behind. Hence, cooling is achieved.