Atomic Theory
Who was the first person to discover that atoms has a concentrated nucleus?
Rutherford
What is the only part of the spectrum that we can see?
Visible light
If and atom has 12 neutrons, 13 protons, and 12 electrons. What is its isotopic name and charge?
Aluminium-25 with a +1 charge
Out of the following elements which one is the most Electronegative?
Carbon
Calcium
Cadmium
Chlorine
Chlorine
How many moles is 60.22*10^23 atoms of CO2?
10 moles of CO2
Who was the Person who discovered the electron?
Thomson
What is the first part of the spectrum that can harm your skin?
Ultraviolet
If and atom has 6 neutrons, 6 protons, and 6 electrons. What is its isotopic name and charge?
Carbon-12 with no charge
Out of the following elements which one has the highest atomic radius?
Chlorine
Boron
Barium
Sodium
Barium
How many moles is 70 grams of gaseous chlorine?
1 Moles of Cl2
Who said all atoms orbit the nucleus?
Bohr
What is the first part of the spectrum that is related to heat?
Infrared
If and atom has 48 neutrons, 47 protons, and 45 electrons. What is its isotopic name and charge?
Silver-95 with a +2 charge
Out of the following elements which one has the most Electron affinity?
Magnesium
Selenium
Germanium
Bismuth
Selenium
How many atoms are in 88 grams of CO2?
1.204*1024 atoms of CO2
Who discovered the neutron?
Chadwick
What is the first part of the spectrum that can harm your organs?
X-ray
If and atom has 2 neutrons, 1 protons, and 2 electrons. What is its isotopic name and charge?
Hydrogen-3 with a -1 Charge
What is oxidation number of Carbon?
+/- 4
How many grams are in 2.408x10^24 atoms of H2O?
72 grams of H2O
Who did the experiment with gold foil and what did it discover?
Rutherford, Atoms are mostly empty space.
What is the the first part of the spectrum that can cause damage to the brain?
Gamma Rays
If and atom has 10 neutrons, 10 protons, and 8 electrons. What is its isotopic name and charge? Is this possible and why?
Neon-20 with a +2 charge. This is not a possible element as Neon is naturally stable and would never give up electrons.
How is the electron affinity and the Electronegativity connected? Explain.
The affinity is how much an atom craves their electrons and if they want it. The electron negativity the the same thing but a quantitated value assigned to each.
How many grams of CO2 will you get if you end with 72 grams of H2O
CH4 + 2O2 --> CO2 + 2H2O
88 grams of CO2