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NEMCC PHYSICAL SCIENCE SURVEY II
(DEWITT) EXAM / ACTUAL PHYSICAL
SCIENCE SURVEY II NEMCC (DEWITT)
MIDTERM EXAM 2026/2027 ACCURATE
TEST APPROVED QUESTIONS WITH WELL
ELABORATED ANSWERS (100% CORRECT
VERIFIED SOLUTIONS) CURRENTLY
UPDATED VERSION |GUARANTEED
1. Which subatomic particle has a negative charge and is
found outside the nucleus?
A) Proton
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B) Neutron
C) Electron
D) Positron
Answer: C – Electrons orbit the nucleus and carry a
fundamental negative charge.
2. The atomic number of an element is determined by the
number of:
A) Neutrons
B) Protons
C) Electrons in the valence shell
D) Nucleons
Answer: B – Atomic number (Z) equals the number of protons.
3. Isotopes of the same element differ in the number of:
A) Protons
B) Electrons
C) Neutrons
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D) Positrons
Answer: C – Isotopes have same protons, different neutrons.
4. Which element has the electron configuration 1s² 2s² 2p⁶
3s² 3p⁵?
A) Chlorine
B) Sulfur
C) Argon
D) Fluorine
Answer: A – 17 electrons = Chlorine.
5. Which periodic trend increases from left to right across a
period?
A) Atomic radius
B) Metallic character
C) Ionization energy
D) Ionic radius (for cations)
Answer: C – Ionization energy increases due to greater
nuclear charge.
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6. Which group of the periodic table contains the noble gases?
A) Group 1
B) Group 2
C) Group 17
D) Group 18
Answer: D – Noble gases are Group 18 (He, Ne, Ar, etc.).
7. How many valence electrons does carbon have?
A) 2
B) 4
C) 6
D) 8
Answer: B – Carbon is in Group 14 → 4 valence electrons.
8. Which scientist proposed the planetary model of the atom
with electrons orbiting the nucleus?
A) Dalton
B) Thomson
C) Rutherford
NEMCC PHYSICAL SCIENCE SURVEY II
(DEWITT) EXAM / ACTUAL PHYSICAL
SCIENCE SURVEY II NEMCC (DEWITT)
MIDTERM EXAM 2026/2027 ACCURATE
TEST APPROVED QUESTIONS WITH WELL
ELABORATED ANSWERS (100% CORRECT
VERIFIED SOLUTIONS) CURRENTLY
UPDATED VERSION |GUARANTEED
1. Which subatomic particle has a negative charge and is
found outside the nucleus?
A) Proton
,Page 2 of 118
B) Neutron
C) Electron
D) Positron
Answer: C – Electrons orbit the nucleus and carry a
fundamental negative charge.
2. The atomic number of an element is determined by the
number of:
A) Neutrons
B) Protons
C) Electrons in the valence shell
D) Nucleons
Answer: B – Atomic number (Z) equals the number of protons.
3. Isotopes of the same element differ in the number of:
A) Protons
B) Electrons
C) Neutrons
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D) Positrons
Answer: C – Isotopes have same protons, different neutrons.
4. Which element has the electron configuration 1s² 2s² 2p⁶
3s² 3p⁵?
A) Chlorine
B) Sulfur
C) Argon
D) Fluorine
Answer: A – 17 electrons = Chlorine.
5. Which periodic trend increases from left to right across a
period?
A) Atomic radius
B) Metallic character
C) Ionization energy
D) Ionic radius (for cations)
Answer: C – Ionization energy increases due to greater
nuclear charge.
, Page 4 of 118
6. Which group of the periodic table contains the noble gases?
A) Group 1
B) Group 2
C) Group 17
D) Group 18
Answer: D – Noble gases are Group 18 (He, Ne, Ar, etc.).
7. How many valence electrons does carbon have?
A) 2
B) 4
C) 6
D) 8
Answer: B – Carbon is in Group 14 → 4 valence electrons.
8. Which scientist proposed the planetary model of the atom
with electrons orbiting the nucleus?
A) Dalton
B) Thomson
C) Rutherford
