Seudónimo Seudónimo

15-04-2021
Physics

contestada

Atoms of which two elements have a combined total of 23 protons? (no links and brainliest)

Respuesta :

valentina9174 valentina9174

15-04-2021

A) Sodium, Na, and magnesium, Mg.

Answer Link

Otras preguntas

At which temperature would atoms of a He(g) sample have the greatest average kinetic energy? (1) 25°C (3) 273 K (2) 37°C (4) 298 K

What gas was present in earth's earliest atmosphere and used by cyanobacteria during photosynthesis? A. oxygen B. carbon dioxide C. nitrogen D. methane

Which two compounds have the same molecular formula but different chemical and physical properties? (1) CH3CH2Cl and CH3CH2Br (2) CH3CHCH2 and CH3CH2CH3 (3) CH3

The wave-mechanical model of the atom is required to explain the (1) mass number and atomic number of an atom (2) organization of atoms in a crystal (3) radioac

Which statement describes what occurs as two atoms of bromine combine to become a molecule of bromine? (1) Energy is absorbed as a bond is formed. (2) Energy is

Evaluate the function at the given value of the independent variable and simplify. f(x) = 4x2 + 5x - 6; f(x - 1)

At STP, which element is solid, brittle, and a poor conductor of electricity? (1) Al (3) Ne (2) K (4) S

How do you find the are of the circle and the square

find the surface area of the open circular cylinder shower=4 h= 7

Which ancient Chinese philosophy started first?