1 Answers
Call
Does Zeff increase, decrease or stay the same for transition metals in a row?
The effective nuclear charge ($Z_"eff"$) increases slightly along a transition series. This is because more protons are added in the nucleus, whereas the same number of electrons is added in...
1 Answers 1 views
How can I find valence electrons of transition metals?
Most transition metals have 2 . are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an that...
1 Answers 1 views
What are valence electrons? How many valence electrons are possessed by the nitrogen atom?
Nitrogen is in Group V. It has 5 . Do I win £5-00?
1 Answers 1 views
Consider sodium, which has an atomic number of 11 and an atomic mass of 23. How many valence electrons does it have?
This should be pretty obvious. And the number of this Group gives the number of ...
1 Answers 1 views
How many transition metals actually have used more than 8 valence electrons? Does $"Ag"$ have 11 valence electrons or 1 or what?
In terms of actual , there is literally only one example. You can consider that their oxidation states have never gotten higher than $+8$, except for Iridium: In terms...
1 Answers 1 views
What does the sum of the core electrons and valence electrons equals?
If the atom is neutral, the sum of the core and is the same as the number of protons, which is the of the element. So if the sum of...
1 Answers 1 views
A photon on a hydrogen atom excited an electron from $n = 1$ to make a transition to $n=3$. What is the wavelength (in run) pertaining to this transition and was the transition emitting or absorbing in nature?
In order to solve this question we will use the Bohr Model. The change in energy according to Bohr can be calculated by: $DeltaE=-2.178xx10^(-18)Z^(2)J(1/(n_("final")^2)-1/(n_("initial")^2))$ Here, the initial level is $n_("initial")=1$...
1 Answers 1 views
How can I calculate the valence electrons of transition metals?
You can calculate the number of of transition metals by counting the number of electrons outside the ultimate noble gas core. e.g (1) Chromium: $[Ar]3d^(5)4s^(1)$ This means there are 6...
1 Answers 1 views
Zinc phosphide, $Zn_3P_2$, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?
And the zinc cation is $Zn^(2+)$. When the ions form a salt, clearly they form an electrically neutral species; and thus the formulation of the salt is $Zn_3P_2$. Each phosphorus...
1 Answers 1 views
What is the electronic configuration of the first row transition metals and their dications? Why is the configuration of $Cr^(2+)$ unusual?
The atomic configuration of the first row transition series is....: $1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^n$ The ionic configuration of the $M^(2+)$ cation is (usually)........ $[1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^n]^(2+)$ The $4s$ electrons are conceived to be removed FIRST...
1 Answers 1 views