Curriculum
Course: Science — First Preparatory
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Curriculum

Science — First Preparatory

Unit 1: Matter

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Unit 2: Forces

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Unit 3: Life

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Unit 4: Earth and Space

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Quiz

Structure of the Atom — Lesson quiz

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  • Questions count: 5
  • Passing grade: 60%
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1.
How many protons, neutrons and electrons does the carbon atom ¹²C have, given that its atomic number is 6?
6 protons, 6 neutrons and 6 electrons
12 protons, 6 neutrons and 6 electrons
6 protons, 12 neutrons and 12 electrons
6 protons, 18 neutrons and 6 electrons
2.
A sodium atom has atomic number 11 and mass number 23. How many neutrons does it have?
11 neutrons
12 neutrons
34 neutrons
23 neutrons
3.
How many electrons does the sodium ion Na⁺ have?
11 electrons
12 electrons
10 electrons
9 electrons
4.
What is the maximum number of electrons the second level can hold in the first 20 elements?
2 electrons
18 electrons
10 electrons
8 electrons
5.
Which basic particle of the atom carries no electric charge?
The neutron
The proton
The electron
The nucleus
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