Which statement about nitrogen (N) and phosphorus (P) is correct?
They have the same number of valence electrons.
They have the same number of electron shells. ***
They are both inert.
They are both classified as halogens.
1. Two groups of elements in the periodic table are most reactive?
Alkali metals and halogens
2. Which statement about nitrogen and phosphorus is correct?
They have the same number of valence electrons.
3. What property do transition metals have in common?
They usually have high melting points.
4. Neon and argon are both in group 18 of the periodic table which property do they most likely share?
Low or no reactivity.
5. A scientist studies an element that has seven electrons in its outer shell is fairly toxic is gas at room temperature and is highly reactive. Which group does the element belong?
17 – halogens.
You are welcome.
I don't agree with your answer.
N is atomic number 7
P is atomic number 15
Electron configuration N = 1s2 2s2 2p3 = 7 electrons in 2 shells. 3 valence electrons.
Electron configuration P = 1s2 2s2 2p3 3s2 3p3 = 15 electrons in 3 shells. 3 valence electrons.
what is right then???
The correct statement is: They have the same number of electron shells.
To determine if this statement is correct, we need to know the electron configuration of nitrogen (N) and phosphorus (P) on the periodic table.
Electron configuration is the arrangement of electrons in an atom, and it consists of energy levels, also known as electron shells.
In the case of nitrogen (N), its electron configuration is 1s^2 2s^2 2p^3. This indicates that nitrogen has two electrons in its first shell (1s), and five electrons in its second shell (2s^2 2p^3).
For phosphorus (P), its electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^3. This means that phosphorus has two electrons in its first shell (1s), two electrons in its second shell (2s^2), six electrons in its third shell (2p^6 3s^2), and three electrons in its outermost shell, which is the third shell's p orbital (3p^3).
Comparing the electron configurations of nitrogen and phosphorus, we can see that both elements have two electron shells (1s, 2s, and 2p for nitrogen, and 1s, 2s, 2p, 3s, and 3p for phosphorus). So, the statement "They have the same number of electron shells" is correct.