nguyên tử nguyên tố X có tổng số hạt p, e, n là 58, số hạt p chênh lệch với số hạt n không quá 1. Tìm nguyên tử X và viết kí hiệu nguyên tử

What is a property of a double replacement reaction

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?