An Introduction to Electrical Science 1st Edition by Adrian Waygood - All Chapters 1-16 | TEST BANK

,
, (C) a conductor.
(D) an insulator.

Answer: (B) a compound.

6 An atom's positively-charged sub-particles are called

(A) neutrons.
(B) protons.
(C) electrons.
(D) quanta.

Answer: (B) protons.

7 An atom's negatively-charged sub-particles are called

(A) neutrons.
(B) protons.
(C) electrons.
(D) quanta.

Answer: (C) electrons.

8 An atomic sub-particle that carries no electrical charge is called a

(A) proton.
(B) neutron.
(C) quantum.

Answer: (B) neutron.

9 An universal law that applies to electrical charges states that

(A) like charges attract.
(B) unlike charges attract.
(C) like charges neutralise.
(D) unlike charges neutralise.

Answer: (B) unlike charges attract.

10 The outermost shell of an atom is called its

(A) k' shell.
(B) l' shell.
(C) m' shell.
(D) valence shell'.

Answer: (D) valence shell'.

11 The chemical and electrical properties of an atom is determined by its

, (A) k' shell.
(B) l' shell.
(C) m' shell.
(D) valence shell'.

Answer: (D) valence shell'.

12 An electrically-charged atom is termed

(A) an 'ion'.
(B) a 'positive ion'.
(C) a 'negative ion'.
(D) a 'positron'.

Answer: (A) an 'ion'.

13 A 'positive ion' is an atom with

(A) more electrons than protons.
(B) more protons than neutrons.
(C) more protons than electrons.
(D) more electrons than neutrons.

Answer: (C) more protons than electrons.

14 A 'positive ion' will tend to attract

(A) protons.
(B) electrons.
(C) neutrons.
(D) other atoms.

Answer: (B) electrons.

15 A 'free electron' is an electron released from an atom's

(A) k' shell.
(B) l' shell.
(C) m' shell.
(D) valence' shell

Answer: (D) valence' shell

16 If the outer shell of an atom is less than half full, it will tend to

(A) attract free electrons.
(B) lose electrons.
(C) be electrically negative.
(D) be electrically positive.