AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many valence electrons does Hydrogen have?
A
8
B
6
C
1
D
3
Explanation: 

Detailed explanation-1: -Valence electron means electron in outermost shell of an atom and atomic number of hydrogen is 1. So, total number of electrons will be 1 and valence electrons will also be 1.

Detailed explanation-2: -Hydrogen has 1 valence electron. Was this answer helpful?

Detailed explanation-3: -Hydrogen is the first element on the periodic table, with an atomic number of 1. The one means that it has 1 proton, and the number of protons and electrons is the same, so it has 1 electron too.

Detailed explanation-4: -A: Any element in group 1 has just one valence electron. Examples include hydrogen (H), lithium (Li), and sodium (Na).

Detailed explanation-5: -Why does hydrogen only have 1 valence electron?-The atomic number of hydrogen is 1, so there is one electron in the hydrogen atom, therefore, its configuration will be 1s1. Only one electron is present and the last shell is 1s and there is 1 electron present in it, so the number of valence electrons is 1.

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