Microwaves are defined as electromagnetic radiations with a frequency ranging between 300 MHz to 300 GHz while the wavelength ranges from 1 mm to around 30 cm. The microwave radiation is commonly referred to as microwaves. They fall between the infrared radiation and radio waves in the electromagnetic spectrum. radio waves in the electromagnetic spectrum.
Answer:
Option D is correct = -273 °C
Explanation:
Data given:
Temperature of absolute zero
Absolute Zero in Celsius = ?
Solution:
As we know
internationally the temperature of Absolute zero on kelvin scale = 0 K
So to convert Kelvin temperature to degree Celsius formula will used
T(K) = T(°C) + 273
Rearrange the above equation for °C
T(°C) = T(K) - 273 . . . . (1)
Put value in above eq.1
T(°C) = 0 - 273
T(°C) = -273
So,
The absolute zero in °C = -273
so option D is correct
Sodium has a lower ionization energy than magnesium describes why sodium reacts vigorously than magnesium chloride.
<h3>Why is sodium more reactive than magnesium?</h3>
- Sodium is more reactive than magnesium because it has the ability to easily lose electron, hence have lower ionization energy.
- Sodium belong to group one on the periodic table and they are called akali metal while magnesium belong to group two on the periodic table and they are called alkali Earth metal.
- Sodium and magnesium belong to the in the 3rd period. Iin the outermost energy level sodium has one electron but magnesium has 2 electrons. Therefore, there is more attraction abetween the nucleus and electrons in magnesium than that of sodium.
Therefore, sodium is more reactive than magnesium chloride because of lower ionization energy.
For more details on sodium reactivity, check the link below.
brainly.com/question/6837593
The only answer that really makes sense here is the first one, properties. I would go with that one.
Answer:
Neutrons
Explanation:
The number of neutrons varies from atom to atom, which results in isotopes. Isotopes are different forms of the same atom that vary by the number of neutrons they contain.
