Atoms & Molecules Quiz

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Test your understanding of atomic basics.

Créé par

Charlotte L.

Singapore

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Atoms & Molecules Quiz


Froggy Jumps Atoms & Molecules QuizVersion en ligne Test your understanding of atomic basics. par Charlotte L. 1 What is the smallest unit of an element called? a Ion b Molecule c Atom 2 Where are protons and neutrons located in an atom? a In the electron cloud b Around the nucleus c In the nucleus 3 What are the particles with negative charge in an atom? a Electrons b Protons c Neutrons 4 What determines an element’s identity by number of protons? a Mass number (A) b Atomic number (Z) c Isotopic mass 5 What is the total number of protons and neutrons called? a Electron number b Mass number c Atomic number 6 Which term describes atoms of the same element with different neutron numbers? a Ions b Moles c Isotopes 7 Molecules are formed when atoms are ____ together. a Ionically b Chemically c Physically 8 What represents the number and type of atoms in a compound? a Nuclide notation b Molecule model c Chemical formula 9 Which subatomic particle has a relative mass about 1 and a positive charge? a Electron b Proton c Neutron 10 What is the term for the total number of protons in an atom’s nucleus? a Charge number b Mass number c Atomic number 11 What is the basic unit of an element? a Molecule b Ion c Atom 12 Which subatomic particle has a negative charge? a Neutron b Electron c Proton 13 Where are protons and neutrons located? a In electron shells b In the orbit c In the nucleus 14 What determines an element’s identity? a Number of protons b Number of electrons c Number of neutrons 15 What is the mass number? a Protons + neutrons b Electrons + neutrons c Protons + electrons 16 What is a nuclide notation example? a Na23/11 b 23/11 Na c 11/23 Na 17 What are isotopes? a Ions of the same element b Atoms of same element different neutrons c Different elements with same mass 18 Ar stands for what? a Mass number b Atomic number c Relative atomic mass 19 How many electrons can first shell hold? a 2 b 1 c 8 20 What are valence electrons? a Electrons in inner shell b Protons in nucleus c Electrons in outer shell 21 Which group contains noble gases? a Group 1 b Group 8 c Group 18 22 What happens to atoms to achieve noble gas configuration? a Lose or gain electrons b Split protons c Change neutrons 23 What is an ion? a A charged particle b A free electron c A neutral atom 24 What type of bond forms molecules of elements like H2, O2, N2? a Ionic bond b Covalent bond c Metallic bond 25 What does a chemical formula represent? a Molecular shape b Total mass only c Number of atoms of each element 26 What is a molecule of water composed of? a 3 H and 0 O b 1 H and 2 O c 2 H and 1 O 27 What is a diatomic molecule? a Compound of two elements b Ion pair c Molecule of one element 28 Which particles form the nucleus? a Electrons and protons b Electrons and neutrons c Protons and neutrons 29 Where do electrons primarily reside? a Inside the nucleus b Outside atom entirely c Around the nucleus 30 Which notation shows electrons per shell? a Nuclide notation b Molecular formula c Electronic configuration 31 Which statement is true about ions? a Formed by neutron gain b Formed by electron gain or loss c Always neutral 32 What is the correct charge for a +1 ion symbol? a Na+ b Na-1 c Na1 33 What does a plus sign mean in ion notation? a Gain of electrons b Gain of protons c Loss of electrons 34 What determines the period an element is in? a Number of protons b Number of neutrons c Number of electron shells 35 Which particle has negligible mass and orbits the nucleus? a Neutron b Electron c Proton 36 What does ‘Ar’ quantify? a Average mass of atoms of an element b Isotopic mass only c Atomic number 37 What is the chemical symbol for oxygen? a O b Og c Ox 38 What is the symbol for sodium in nuclide notation? a Na b So c Sd 39 Which elements tend to form positive ions (cations)? a Noble gases b Non-metals c Metals 40 Which elements form negative ions (anions)? a Non-metals b Noble gases c Metals

Atoms & Molecules Quiz

Froggy Jumps

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Atoms & Molecules QuizVersion en ligne

par Charlotte L.

What is the smallest unit of an element called?

Where are protons and neutrons located in an atom?

What are the particles with negative charge in an atom?

What determines an element’s identity by number of protons?

What is the total number of protons and neutrons called?

Which term describes atoms of the same element with different neutron numbers?

Molecules are formed when atoms are ____ together.

What represents the number and type of atoms in a compound?

Which subatomic particle has a relative mass about 1 and a positive charge?

What is the term for the total number of protons in an atom’s nucleus?

What is the basic unit of an element?

Which subatomic particle has a negative charge?

Where are protons and neutrons located?

What determines an element’s identity?

What is the mass number?

What is a nuclide notation example?

What are isotopes?

Ar stands for what?

How many electrons can first shell hold?

What are valence electrons?

Which group contains noble gases?

What happens to atoms to achieve noble gas configuration?

What is an ion?

What type of bond forms molecules of elements like H2, O2, N2?

What does a chemical formula represent?

What is a molecule of water composed of?

What is a diatomic molecule?

Which particles form the nucleus?

Where do electrons primarily reside?

Which notation shows electrons per shell?

Which statement is true about ions?

What is the correct charge for a +1 ion symbol?

What does a plus sign mean in ion notation?

What determines the period an element is in?

Which particle has negligible mass and orbits the nucleus?

What does ‘Ar’ quantify?

What is the chemical symbol for oxygen?

What is the symbol for sodium in nuclide notation?

Which elements tend to form positive ions (cations)?

Which elements form negative ions (anions)?