Question 1

Which element has the lowest first ionization energy?

Accepted Answer

A

Answer

D

Answer

E

Answer

B

Question 2

Which pair of elements has the same number of outer electrons?

Accepted Answer

C and D

Answer

B and E

Answer

D and E

Answer

B and D

Question 3

What will element X resemble when it gains one electron?

Accepted Answer

Noble gas configuration

Answer

Non-metal ion configuration

Answer

Metal ion configuration

Answer

Alkali metal configuration

Question 4

Based on the colors observed, which conclusion is incorrect?

Accepted Answer

KCl and NaCl do not absorb white light

Answer

Color of KMnO4 and flame colors come from the same energy level change

Answer

Substance colors indicate negative ions

Answer

Fire colors indicate positive ions

Question 5

What is the maximum number of electrons in energy level n = 5?

Accepted Answer

50

Answer

49

Answer

25

Answer

25

Question 6

What type of particle is I if it has 13 protons and 14 neutrons?

Accepted Answer

Atom of a metal

Answer

Isotope

Answer

Positive ion

Answer

Negative ion

Question 7

Which element has the lowest first ionization energy from the given options?

Accepted Answer

A

Answer

C

Answer

D

Answer

B

Question 8

What is the order of ions based on the given atomic numbers?

Accepted Answer

O2- > F- > Na+ > Mg2+ > Al3+

Answer

O2- > F- > Al3+ > Mg2+ > Na+

Answer

Al3+ > Mg2+ > Na+ > F- > O2-

Answer

Na+ > Mg2+ > Al3+ > O2- > F-

Question 9

What is the atomic radius of Argon based on the provided data?

Accepted Answer

88 pm

Answer

117 pm

Answer

192 pm

Answer

104 pm

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