Sub shells - Study guides, Revision notes & Summaries
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AQA AS Physical Chemistry 2024 exam questions with 100% correct answers
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AQA AS Physical Chemistry 2024 exam 
questions with 100% correct answers 
Who described atoms as solid spheres that make up different elements and when? - 
ANSWERS John Dalton in the 19th century 
Who suggested that atoms of a particular element had the same mass and atoms of 
different elements had different masses and when? - ANSWERS John Dalton in 1803 
Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered 
electrons proving atoms weren't indivisible or solid. 
New m...
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Inorganic Chemistry Exam 3 Exam With 100% Correct Answers 2024
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Inorganic Chemistry Exam 3 Exam With 
100% Correct Answers 2024 
What is a transition metal defined as? - answerA transition metal is an element whose atom 
has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell 
What elements are excluded from the transition metals and why? - answerZinc, Cadmium, 
and Mercury are excluded since they have a full d10 sub-shell 
Why does Chromium (Cr) have the electron configuration 4s13d5 and not 4s23d4? - 
answerPreferenc...
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AQA AS Physical Chemistry 2024 Exam Questions And Answers
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AQA AS Physical Chemistry 2024 Exam Questions And Answers 
 
Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century 
 
Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 
 
Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. 
 
New model named pl...
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Inorganic Chemistry Exam 3 Exam With 100% Correct Answers 2024
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Inorganic Chemistry Exam 3 Exam With 
100% Correct Answers 2024 
What is a transition metal defined as? - answerA transition metal is an element whose atom 
has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell 
What elements are excluded from the transition metals and why? - answerZinc, Cadmium, 
and Mercury are excluded since they have a full d10 sub-shell 
Why does Chromium (Cr) have the electron configuration 4s13d5 and not 4s23d4? - 
answerPreferenc...
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BTEC Applied Science Chemistry Practice Questions and Answers
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How many electrons can each orbital hold? Two 
 
How many electrons can be held in each sub shell? S - 2 
P - 6 
D - 10 
F - 18 
 
Put the sub shells in order do their energy, lowest to highest S, p, d and f 
 
How do we fill the p and d subshells singly first and then doubly 
 
What is an orbital? A region of space around the nucleus where there is a 95% chances of finding an electron 
 
What is the Aufbau principle? An electron occupies the lowest-energy orbital that can receive it 
 
What ha...
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AS level OCR Chemistry Exam Questions And Answers (Verified And Updated)
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AS level OCR Chemistry Exam Questions 
And Answers (Verified And Updated) 
Isotopes - answerDifferent atomic forms of the same element. Atoms with the same number 
of protons but a different number of neutrons 
Relative atomic mass - answerThe mean mass of an atom of an element, compared to 1/12th 
of the mass of an atom of carbon-12 
Concentration= - answerNumber of moles ÷ Volume 
One mole - answer6.02×10^23 
Number of moles= - answermass ÷ molar mass 
r.t.p - answer25 ºC 
100 kPa (1 atm) ...
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AS level OCR Chemistry Exam Questions And Answers (Verified And Updated)
- Exam (elaborations) • 10 pages • 2024
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AS level OCR Chemistry Exam Questions 
And Answers (Verified And Updated) 
Isotopes - answerDifferent atomic forms of the same element. Atoms with the same number 
of protons but a different number of neutrons 
Relative atomic mass - answerThe mean mass of an atom of an element, compared to 1/12th 
of the mass of an atom of carbon-12 
Concentration= - answerNumber of moles ÷ Volume 
One mole - answer6.02×10^23 
Number of moles= - answermass ÷ molar mass 
r.t.p - answer25 ºC 
100 kPa (1 atm) ...
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AQA AS Physical Chemistry 2024 exam questions with 100% correct answers
- Exam (elaborations) • 29 pages • 2024
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- £11.04
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AQA AS Physical Chemistry 2024 exam 
questions with 100% correct answers 
Who described atoms as solid spheres that make up different elements and when? - 
ANSWERS John Dalton in the 19th century 
Who suggested that atoms of a particular element had the same mass and atoms of 
different elements had different masses and when? - ANSWERS John Dalton in 1803 
Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered 
electrons proving atoms weren't indivisible or solid. 
New m...
-
Ca Applicators Study Course Exam Questions and Answers 100% Pass
- Exam (elaborations) • 11 pages • 2024
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Ca Applicators Study Course Exam 
Questions and Answers 100% Pass 
What is a Trade Name - Correct Answer ️️ -The name given to the product by the 
manufacture. 
What are Inert Ingredients - Correct Answer ️️ -Ingredients with no pesticide action. 
What is the Signal Word - Correct Answer ️️ -Danger, Warning or Caution, which 
denotes Toxicity 
What are Re Entry Levels - Correct Answer ️️ -The amount of time or condition of the 
application before an unprotected person may enter t...
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AS-Level Chemistry :Paper 1 2024 latest update graded a+
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AS-Level Chemistry :Paper 1 2024 
latest update graded a+ 
Arranged in periods (rows) and groups (columns) by atomic (proton) 
number - CORRECT ANSWER-How is the periodic table arranged 
Have the same number of electrons shells, even if they are not all 
parts of the s or p sub-shells - CORRECT ANSWER-All elements 
within a period ... 
Have the same number of electrons in their outer shell, meaning 
that they all have similar properties - CORRECT ANSWER-All 
elements within a group ... 
Pe...
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