Question

55 POINTS


1.) Atoms of elements that bond covalently with other atoms want to____the electrons they already have

A. Lose
B. Gain
C. Keep
D. Ionize


2.)atoms on the left side of the periodic table typically form____bonds but not____bonds with other atoms.

A.) covalent,ionic
B.) ionic,covalent
C.) ionized,covalent
D.) covalent,ionized


3.)what is the ionic symbol for the ion that has 16 protons and 18 electrons?

A.) Ar2+
B.) S2-
C.) Ar2-
D.) S2+


4.) Ionic bonds form because the atoms involved have?

A.) similar charges
B.) different charges
C.) similar elements arrangements
D.) A repulsion force between the electrons in the outer shells


5.) An atom of this element would have very easy time losing one element to form an ionic bond with an atom of an element that would easily accept it:

A.) F
B.) K
C.) Ar
D.) Mg

Answer 1

1) The correct answer is option C. Keep

In covalent bonds electrons are shared and they are neither lost or gained.

2) The correct answer is option B. ionic,covalent

Elements on the left side of the periodic table such as elements from Group 1 and Group 2 form ionic bonds but they never form covalent bonds.

3) The correct answer is option B. S²⁻

Since the number of protons is 16 so the atomic number of the element must be 16.  Based on the periodic table 'S' or sulfur has atomic number 16. In a neutral atom the number of protons is equal to the number of electrons.  Here since the number of electrons (18) is greater than the number of protons (16), the ion must be anion with 2 extra negative charges. So the ion is S²⁻.

4) The correct answer is option B. different charges

An ionic bond is formed between a positively charged ion (cation) and negatively charged ion (anion).

5)The correct answer is option B. K

K is an alkali metal and it belongs to Group 1 in the periodic table. So K has a low ionisation energy and it very easy for K to lose an electron and form K⁺cation.