which statement describes a periodic trend of electronegativity?
o
a. electronegativity increases from top to bottom of a group.
o
b. electronegativity increases from left to right across a period.
o
c. electronegativity increases from right to left across a period.
o
d. electronegativity remains the same within a period.
submit

law of conservation of matter

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.