Question

which statements accurately describe trends found in the periodic table? check all that apply. henry moseley established a periodic table that arranges the elements by atomic number. the atomic mass decreases from left to right on the periodic table. the atomic number increases from left to right on the periodic table. nonmetals create a \staircase\ down the periodic table. metalloids have the characteristics of both metals and nonmetals.

Explanation:

Henry Moseley arranged elements by atomic number. Atomic number increases left - to - right. Metalloids have properties of both metals and non - metals. Non - metals are on the right side, not creating a "staircase" and atomic mass doesn't decrease left - to - right in a simple trend.

Answer:

Henry Moseley established a periodic table that arranges the elements by atomic number.
The atomic number increases from left to right on the periodic table.
Metalloids have the characteristics of both metals and nonmetals.