10 Questions
What is the outermost shell that determines atom properties called?
Valence shell
What is an ion defined as?
Atoms or groups of atoms with a positive or negative charge
How many electrons does helium have in its outermost shell?
2
What makes an atom unstable?
An unfilled electron shell
What are isotopes?
Different atoms of the same element with different number of neutrons
Which type of bond involves the transfer of electrons between atoms?
Ionic bond
What type of reaction involves the breakdown of large molecules into smaller ones?
Decomposition reaction
Which element is involved in forming hydrogen bonds with other atoms?
Hydrogen
In which type of reaction do 2 components bond to make a larger molecule?
Synthesis reaction
What type of bond involves the sharing of electrons between atoms?
Polar covalent bond
Test your knowledge of the basic structure of atoms, including the components of the nucleus, electron orbitals, and the concept of valence shells.
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