BMST Atomic Structure and Bonding 4

Question 1

What is the charge of a neutron?

Accepted Answer

0

Answer

Neutrons carry no electrical charge; they are electrically neutral particles in the nucleus.

Question 2

Which element has the electron configuration 1s² 2s² 2p⁶ 3s¹?

Accepted Answer

Sodium

Answer

Sodium (Na) has atomic number 11, and its electron configuration ends with one electron in the 3s subshell.

Question 3

What does the octet rule state?

Accepted Answer

Atoms are most stable with 8 valence electrons

Answer

The octet rule states that atoms tend to bond in ways that give them 8 valence electrons, achieving noble gas stability.

Question 4

Which of the following best describes a nonpolar covalent bond?

Accepted Answer

Electrons are equally shared between atoms

Answer

Nonpolar covalent bonds form when two atoms of equal electronegativity share electrons equally.

Question 5

Rutherford's gold foil experiment proved that atoms have a:

Accepted Answer

Small, dense, positively charged nucleus

Answer

When alpha particles deflected at large angles, Rutherford concluded the atom has a small, dense, positive nucleus.

BMST - Basic Math and Science Test Practice Test