Test: Atomic structure
Vestnik: Full course of chemistry in multiple choice questions | Mavzudagi savollar: 49 | Fan: Chemistry
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Mavzu savollari
1
The nucleus of a ²³₁₁Na atom contains
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3
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5
The relative atomic mass is defined as
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6
The definition of the mole is
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12
Which of these atoms has the largest atomic radius?
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13
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15
Which atom has an incomplete sub-shell?
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16
17
What is the number of protons present in a ⁵⁸Co²⁺ ion?
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18
What is the number of electrons present in a ⁷⁹Se²⁻ ion?
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19
What is the number of neutrons present in a ²³⁸U³⁺ ion?
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21
The condensed electron configuration for ²⁴Cr is
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22
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25
What is the electron configuration of Cu²⁺?
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26
27
Which of the following statements is correct?
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28
All matter is made up of tiny particles called
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29
30
Which one of the following particles are the biggest?
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31
The following particle is NOT found inside an atom:
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33
34
The chemical name of NaBr is __________.
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35
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41
The mass number of an element is equal to __________.
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43
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45
The value of Avogadro’s number is equal to
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46
The mass of a mole of an element or compound is
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47
48
In the reaction: 2Mg + O₂ → 2MgO, the reactant is
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49