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WorksheetsWEEK 2- Q2
Total questions: 8
Worksheet time: 4mins
Which of the following is incorrect about the sublevel?
there are four sublevel : s, p, d and f.
S-sharp, P-principle, d-diffuse , and f- fundamental
The maximum number of electrons on sublevel are : s- 2, p- 6, d-10, f-14
principal energy level 1 has 2 sublevel : s and p.
How is the quantum mechanical model of the atom different to the planetary model?
Electrons orbit in clouds: you never know exactly where they are and how fast they’re moving with perfect precision.
Electrons orbit in exact orbital paths, but you cannot know their exact position.
Electrons orbit in exact orbital paths, and you can know their exact position.
they are just the same
The “up’ and “down” arrows in electron orbital notation depict_____________.
protons & electrons
protons and neutrons
electrons with opposite spins
electrons with opposite charges
Which one of the following statements about orbitals is INCORRECT?
orbitals can hold up to two electrons
Orbitals are regions in space where one is likely to find an electron.
Orbitals can hold two electrons provided they are spinning in the same direction.
we can use arrow in a box method to represent orbitals and electron spin.
What is electron configuration of potassium?
1s2 2s2 2p6 3s2 3p5 4s2
1s2 2s2 2p6 3s2 3p6 4s1
1s2 2s2 2p6 3s2 3p6 3d10
1s2 2s2 2p6 3s2 3p6
Which neutral element has the following electron configuration? 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1?
Potassium
Rubidium
Kyrpton
Yttrium
Which element has the following electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s²?
Antimony
Strontium
Argon
Yttrium
Which of the following sublevels is correctly designated?
1p⁵
3f⁹
2p⁶
3d¹¹
