Question

question 3 1 pts sodium, potassium, and cesium belong to which group? alkaline earth metals alkali metals halogens inner transition metals question 4 1 pts how is the modern periodic table arranged? by increasing atomic number by increasing atomic size by increase in atomic mass by decreasing atomic number

Explanation:

Sodium (Na), potassium (K), and cesium (Cs) have one - valence electron and are in Group 1 of the periodic table, which is the alkali metals group. The modern periodic table arranges elements in order of increasing atomic number, which is the number of protons in an atom's nucleus.

Answer:

Question 3: B. alkali metals
Question 4: A. by increasing atomic number