B is the correct answer to your question hope it helped
Answer:
Beryllium family
English Transcript:
Beryllium is the lightest member of the alkaline earth metals family. These metals make up Group 2 (IIA) of the periodic table. They include beryllium, magnesium, calcium, strontium, barium, and radium. Elements in the same column of the periodic table have similar chemical properties.
Spanish (Español) Transcripción:
El berilio es el miembro más ligero de la familia de los metales alcalinotérreos. Estos metales forman el Grupo 2 (IIA) de la tabla periódica. Incluyen berilio, magnesio, calcio, estroncio, bario y radio. Los elementos de la misma columna de la tabla periódica tienen propiedades químicas similares.
Answer:
• neutrons
• protons
Explanation:
The nucleus is made up of two types of subatomic particles, that is the protons and neutrons.
Answer:
C. 579g
Explanation:
Use the formula Density= mass/ volume, make mass the subject of the formula and substitute the given values.
19.3g/cm3 is the density of gold
30cm3 is the volume for the piece of gold
