Question

1. use the words below to complete sentences a - e.

charge anions positively gain negatively atom ionic lose atoms cations
a. an ion is the name for an ____ or group of __ that has lost orgained electrons and has a ____.
b. metal atoms ____ electrons to form ____ charged ions.
c. non - metal atoms ____ electrons to form ____ charged ions.
d. positive ions are known as ____ and negative ions are called ____.
e. positive and negative ions can form a strong attraction to one another which is calledan ______ bond

1. complete the table to show what happens when these atoms form ions.

Explanation:

Step1: Fill sentences a-e

a. An ion is an atom/group of atoms with charge.
b. Metals lose electrons for positive ions.
c. Non-metals gain electrons for negative ions.
d. Positive ions = cations; negative = anions.
e. Attraction between ions is ionic bond.

Step2: Complete the table

Sum electrons in config for "In the atom". Metals lose valence electrons; non-metals gain to fill valence. Calculate ion electrons and formula.

Answer:

Part 1: Sentences

a. atom; atoms; charge
b. lose; positively
c. gain; negatively
d. cations; anions
e. ionic

Part 2: Table

Atomic symbol	Electron config.	Metal or non-metal?	Number of electrons - In the atom?	Number of electrons - Lost or gained? How many?	Number of electrons - In the ion?	Formula of ion
Na	2.8.1	Metal	11	Lost 1	10	Na⁺
K	2.8.8.1	Metal	19	Lost 1	18	K⁺
Mg	2.8.2	Metal	12	Lost 2	10	Mg²⁺
Ca	2.8.8.2	Metal	20	Lost 2	18	Ca²⁺
O	2.6	Non-metal	8	Gained 2	10	O²⁻
S	2.8.6	Non-metal	16	Gained 2	18	S²⁻
F	2.7	Non-metal	9	Gained 1	10	F⁻
Cl	2.8.7	Non-metal	17	Gained 1	18	Cl⁻