Which of the following is NOT a hydrogen-like | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) hydrogen-like species is an atom or ion that contains only one electron. To determine this,we check the number of electrons in each species: $A) \

Vedclass · Accepted Answer

$Li^{+}$

Vedclass · Answer

(C) hydrogen-like species is an atom or ion that contains only one electron. To determine this,we check the number of electrons in each species: $A) \ Li^{2+}$: Lithium has $3$ electrons. $Li^{2+}$ has $3 - 2 = 1$ electron. It is hydrogen-like. $B) \ Be^{3+}$: Beryllium has $4$ electrons. $Be^{3+}$ has $4 - 3 = 1$ electron. It is hydrogen-like. $C) \ Li^{+}$: Lithium has $3$ electrons. $Li^{+}$ has $3 - 1 = 2$ electrons. It is $NOT$ hydrogen-like. $D) \ He^{+}$: Helium has $2$ electrons. $He^{+}$ has $2 - 1 = 1$ electron. It is hydrogen-like. Therefore,$Li^{+}$ is the correct answer.

Which of the following is $NOT$ a hydrogen-like species?

Similar Questions

What is the atomic number and the number of electrons in a hydrogen atom (containing $1$ proton) and a sodium atom (containing $11$ protons) respectively?

Substances which have identical chemical properties but differ in atomic weights are called

If the atomic weight of an element is $23$ times that of the lightest element and it has $11$ protons,then it contains

Which of the following pairs involves isoelectronic ions?

The mass numbers of two elements $X$ and $Z$ are $52$ and $75$ respectively. $X$ contains $16.6 \%$ more neutrons compared to protons. $Z$ contains $27.3 \%$ more neutrons compared to protons. $X$ and $Z$ are respectively

Vedclass Test Series

Exam Paper Generator

Online Exam Module