type the correct answer in each box. platinum (pt) is in the 78th position in the periodic table. a neutral…

type the correct answer in each box. platinum (pt) is in the 78th position in the periodic table. a neutral atom of the element that comes just before platinum in the periodic table has electrons and protons.

type the correct answer in each box. platinum (pt) is in the 78th position in the periodic table. a neutral atom of the element that comes just before platinum in the periodic table has electrons and protons.

Answer

Answer:

77 77

Explanation:

Step1: Identify the element before platinum

The element before platinum (78th position) is iridium (Ir), which is in the 77th position.

Step2: Recall properties of a neutral atom

In a neutral atom, the number of electrons equals the number of protons, and the atomic number gives the number of protons. Since iridium has an atomic number of 77, a neutral iridium atom has 77 electrons and 77 protons.