MATERIAL SCIENCE

What does the atomic structure refer to?

• Arrangement of particles in an atom

• The number of neutrons in an atom

• The mass of an atom

• The charge of an atom

What is the role of protons in an atom?

• Determine the identity of an element

• Affect the stability of an atom

• Determine the chemical properties

• None of the above

What is the number of neutrons in Carbon-12?

• 6

• 12

• 8

• 14

What happens to an atom when it loses an electron?

• It becomes a cation

• It becomes an anion

• It remains neutral

What type of bond is formed between metal and non-metal atoms?

• Ionic bond

• Covalent bond

• Metallic bond

The following element is an isotope because:

• It has the same number of protons but a different number of neutrons

• It has the same number of neutrons but a different number of protons

• It has the same mass number and protons

• It has different chemical properties

If an atom has an atomic number of 11 and a mass number of 23, how many neutrons does it have?

• 11

• 12

• 23

• 34

Elements in the periodic table are arranged based on:

• Number of neutrons

• Number of protons in the nucleus

• Number of electrons in the outer shell

• Physical properties only

Groups in the periodic table represent:

• Number of electron shells

• Number of protons

• Number of valence electrons

• Number of neutrons

Elements located in the same group in the periodic table have:

• The same number of neutrons

• Similar chemical properties

• The same atomic mass

• Different numbers of protons