Write a 7 sentence paragraph describe differences between chemical and physical properties of Alkali metals, Alkali Earth metals, Transition metals, Halogens, and Noble gases
If Aluminum gives away three electrons in a slow oxidation by Oxygen, it becomes
Match the following elements with their description
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
O | arrow_right_alt | Electron configuration of 1s22s22p63s23p5 |
Cl | arrow_right_alt | Electron configuration of 1s22s22p1 |
K | arrow_right_alt | forms anion with charge of -3 |
N | arrow_right_alt | forms anion with charge of -2 |
Mg | arrow_right_alt | forms cation with charge of +1 |
B | arrow_right_alt | Electron configuration of 1s22s22p63s2 |
State which statements are true
B has electron configuration of 1s22s2
Oxygen has electron configuration of 1s22s22p5
All Noble gases have three full p orbitals except for Helium
All alkali metals have 3 electrons in their outer s subshell
Alkali earth metals have much lower 2nd ionization energy than 3rd ionization energy
There are 8 f orbitals in each of the 4th and 5th f subshells
There are 5 d orbitals in each of the the 3rd, 4th, 5th and 6th f subshells
Aluminum has a 1s22s22p63s3 electron configuration
the 1st ionization energy is the energy required to remove the outermost electron from an atom
p orbitals are shaped like spheres
The Photoelectric effect explains why photons of energy can collide with electrons and push them from their ground state orbitals to higher orbitals, or away from the atom
When electricity passes through a neon gas in a tube, electrons in the neon atoms gain energy and jump to a higher energy level (excited state).
As these excited electrons fall back to their original lower energy level, they release the absorbed energy as a photon of light, which is visible as the neon glow.
Red light has a higher frequency than blue light
Ultraviolet light has a shorter wavelength than Infrared light
alpha rays, beta rays, and gamma rays are photons with different frequencies
True
False
A mixture of Li-6 and Li-7 reacts with Chlorine gas to form LiCl.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
After the reaction, Cl forms | arrow_right_alt | isotopes |
Li-6 and L-7 are two different | arrow_right_alt | cations |
This reaction happens because of a transfer of | arrow_right_alt | anions |
After the reaction, Li forms | arrow_right_alt | electrons |
Reorder from Least Dense to Most Dense
Magnesium
Oxygen
Lead
Hydrogen
Use the periodic table to match the following
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Atomic Mass of Phosphorus-32 | arrow_right_alt | 16 |
Number of Protons in Sulfur | arrow_right_alt | 10 |
Number of Neutrons in Ca-40 | arrow_right_alt | 12 |
Atomic Number of Magnesium | arrow_right_alt | 32 |
Number of Neutrons in F-19 | arrow_right_alt | 20 |
Match the following (c = λν = 3 x 108 m/s, E = hv, h = 6.636 x 10-34 Js)
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
has wavelength of 8.39 x 10-4 m | arrow_right_alt | Microwave with frequency of 2.8 x 1011 Hz |
has wavelength of 1.8m | arrow_right_alt | Radio wave with frequency of 3.06x 107 Hz |
has wavelength of 1.3 x 10-2m | arrow_right_alt | Microwave with frequency of 1.66x 108 Hz |
has energy of 4.65 x 10 -23 J | arrow_right_alt | Microwave with frequency of 2.31 x 1010 |
has wavelength of 9.8 m | arrow_right_alt | Microwave with frequency of 3.58 x 1011 |