Chemistry 8 grade

Froggy Jumps

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This test covers outer shell completion, electron dot representation, and ionic and covalent bonds.

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jk156

Kazakhstan

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Chemistry 8 grade


Froggy Jumps Chemistry 8 gradeVersion en ligne This test covers outer shell completion, electron dot representation, and ionic and covalent bonds. par jk156 1 What is the main goal of atoms when forming chemical bonds? a To complete their outer shell b To increase mass c To lose all electrons 2 The electron dot representation is also called: a Molecular formula b Structural formula c Lewis dot structure 3 Which particles are shown in an electron dot diagram? a Protons b Neutrons c Valence electrons 4 How many electrons can the outer shell hold (for most atoms)? a 8 b 2 c 4 5 Which element already has a complete outer shell? a Neon b Sodium c Chlorine 6 An ionic bond is formed when: a Electrons are shared b Electrons are transferred c Protons are exchanged 7 Which pair of elements is most likely to form an ionic bond? a H and O b Na and Cl c O and O 8 In an ionic bond, the atom that loses electrons becomes: a An anion b A neutral atom c A cation 9 What charge does a chloride ion (Cl⁻) have? a +1 b 0 c –1 10 A covalent bond is formed when atoms: a Transfer electrons b Share electrons c Lose protons 11 Which substance contains covalent bonds? a NaCl b MgO c H₂O 12 How many electrons are shared in a single covalent bond? a 2 b 1 c 4 13 In a Lewis dot structure, dots around the symbol represent: a Energy levels b Atomic mass c Valence electrons 14 Which element usually forms four covalent bonds? a Oxygen b Nitrogen c Carbon 15 What type of bond exists in O₂ (oxygen molecule)? a Ionic bond b Metallic bond c Covalent bond 16 Which statement about ionic compounds is TRUE? a They have low melting points b They consist of ions c They share electrons

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Chemistry 8 grade

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Froggy Jumps

Chemistry 8 gradeVersion en ligne

par jk156

What is the main goal of atoms when forming chemical bonds?

The electron dot representation is also called:

Which particles are shown in an electron dot diagram?

How many electrons can the outer shell hold (for most atoms)?

Which element already has a complete outer shell?

An ionic bond is formed when:

Which pair of elements is most likely to form an ionic bond?

In an ionic bond, the atom that loses electrons becomes:

What charge does a chloride ion (Cl⁻) have?

A covalent bond is formed when atoms:

Which substance contains covalent bonds?

How many electrons are shared in a single covalent bond?

In a Lewis dot structure, dots around the symbol represent:

Which element usually forms four covalent bonds?

What type of bond exists in O₂ (oxygen molecule)?

Which statement about ionic compounds is TRUE?