Answer:
Metals on the left of the Periodic Table.
Non-Metals on the top-right, plus Hydrogen.
The relative atomic mass of an element is defined as the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-12. To calculate the relative atomic mass of chlorine, the average mass of one atom of chlorine is found by considering 100 atoms of chlorine.
You can find the relative atomic mass by adding the number of protons to the number of neutrons for specific consideration. For example, a carbon-12 atom has 6 protons and 6 neutrons, and so has a relative atomic mass of 12.
I hope this helps
Answer:
102.807 kPa
Explanation:
There are some assumptions to be made in the answer. The air inside the balloon acts as an ideal gas at a given temperature conditions.
Using the combined ideal gas equation.
P= absolute pressure of air inside the balloon.
V= volume of air inside the balloon (6.23 L= 6.23 * 10⁻³ m³)
n= moles of gas(air). (0.250 mol)
R= Universal gas constant ( 8.314 J / mol·K)
T= Temperature in Kelvin
T= 35 + 273.15 = 308.15 K
So,
P= 102.807 * 10³ Pa
P= 102.807 kPa
Answer:
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Explanation:
When an atom undergoes radioactive decay which is where it spontaneously emit matter and energy from its nucleus, the part of the atom that is affected is the nucleus as it is known to breakdown due to the instability it possesses because of the neutron to proton ratio. This matter and energy is released as the atom hopes to attain stability- transmutes from one element to the next, and will continue emission until it does attain stability.