PB_What is Matter made of?

What is the smallest particle of an element that retains its properties?

• Atom
• Ion
• Compound
• Molecule

Which particle has a neutral charge?

• proton
• neutron
• atom

• electron

Who proposed the Plum Pudding model of the atom?

• J.J. Thomson
• Ernest Rutherford
• Niels Bohr
• James Chadwick

What type of chemical bond involves the transfer of electrons?

• Ionic bond
• Metallic bond
• Covalent bond
• Hydrogen bond

The atomic number of a non-charged element represents the number of:

• Protons
• Nuclei
• Electrons
• Neutrons

Which of the following pairs of elements would most likely form an ionic bond?

• Chlorine and Argon
• Sodium and Chlorine
• Sodium and Oxygen
• Calcium and Nitrogen

____________ is the tendency of an atom to attract electrons.

Which type of bond forms between atoms with similar electronegativity values?

• Covalent bond
• Hydrogen bond
• Metallic bond
• Ionic bond

If an atom has 11 protons and 12 neutrons, what is its mass number?

• 22
• 11

• 12

• 23

An atom that gains electrons becomes a:

• anion
• isotope
• neutral atom
• cation