Question

can u help me on these questions?

1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely.

2) describe the general characteristics of metals, nonmetals, and metalloids.

3) identify each of the fallowing as a representative element or a transition element.
(a) lithium---Li
(b) platinum---Pt
(c) promethium---Pm
(d) carbon---C

much help is needed and appriciated

Answer 1

These are discussion questions. We can help review what you write but no one here will write the paper for you.

Answer 2

describe the general characteristics of metals, nonmetals, and metalloids.

Answer 3

Ur black.