Answer:
magnesium chloride (no prefixes)
Non metal atoms got this from google btw
Answer:
It is Likely to Be Sodium (Na) coz as You Down The group the reactivity increase
Answer:
D
Explanation:
Everything in this world is made up of particles of matter
The magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years. This rates how visible celestial bodies are when they are all viewed from the same distance. Luminosity: The brightness of a star in comparison with that of the sun.