Question

based on the table which element most likely has physical and chemical properties of boron (b)?
a. magnesium (mg)
b. aluminum (al)
c. neon (ne)
d. chlorine (cl)

1. which is a property of the noble gases in group 18?

a. malleability
b. brittleness
c. high electrical conductivity
d. does not react

1. protons are found in the ______ of the atom

a. nucleus
b. hard core
c. orbitals
d. electrons

1. which group on the periodic table is likely to form positively charged ions?

a. group 1
b. group 13
c. group 17
d. group 18

Explanation:

Step1: Elements in same group

Elements in the same group of the periodic - table have similar physical and chemical properties. Boron (B) is in Group 13, and Aluminum (Al) is also in Group 13.

Step2: Noble - gas property

Noble gases in Group 18 are very stable and have a full outer - electron shell, so they generally do not react.

Step3: Proton location

Protons are positively charged particles and are located in the nucleus of an atom.

Step4: Ion - formation

Elements in Group 1 have 1 valence electron. They tend to lose this electron to form positively charged ions.

Answer:

1. b. Aluminum (Al)
2. d. Does not react
3. a. nucleus
4. a. Group 1