Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?

magnesium (Mg) and sulfur (S)

sodium (Na) and bromine (Br)

potassium (K) and iodine (I)

nitrogen (N) and oxygen (O)

Nitrogen (N) and Oxygen (O)

Explanation:

Nitrogen (N) has five valence electrons, so it needs three more valence electrons to complete its octet. Two nitrogen atoms will combine. Each will share three electrons to form three covalent bonds, i.e., a triple bond, resulting in a nitrogen molecule.

The valency of oxygen (O) is two, which means that it requires two electrons to complete its outermost (valence) shell. Therefore, two oxygen atoms will combine and share their two valence electrons, resulting in a double bond.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.