Question 1(1 point) The atomic number of each atom is given to the left of each

Question

Question 1(1 point) The atomic number of each atom is given to the left of each of the elements below Which of the atoms has the same valence as carbon 1) 7nitrogen flourine 3) 10neon 4) 12 5)14silicon magnesium Save Question 2 (1 point) Which of the following is true of carbon? It only forms polar molecules. 2) It can form a maximum of three covalent bonds with other elements It is highly electronegative. ) It can form polar and nonpolar bonds. Save Question 3 (1 point) What is the maximum number of covalent bonds an element with atomic number 8 can make with hydrogen? 1) 1 2) 2 3) 4) 4. 5)

Explanation / Answer

The electrons present in the outermost orbital are called as valence electrons.
Crabon has 4 valence elctrons. It belongs to group 14 of periodic table.
Element silicon also belongs to this group and has 4 valence electrons.
Option 5 is the answer

Carbon forms both pola and non polar molecules.
Examples:
Carbon tetrafluoride is a non polar molecule.
Carbon dioxide is polar molecule.
Option 4 is the answer

maximum number of covalent bonds an element with atomic number 8 can make with hydrogen is 2.
Option 2 is the correct answer

A chemical covalent bond is formed between two atoms using two electrons.
The two atoms share this electron pair by forming covalent bond.
Option 2 is the correct answer

If an atom has +1 charge, it means it hs positive charge, which means that the atom
has one electron less than protons or it has one more proton than it does electrons.
Option 4 is the answer.

Anions are the atoms having more protons than electrons and has positive charge.
Option 2 is the answer

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