Answer:
A
Explanation:
Argon has 17 protons and 18 neutron
atomic number is the same as the protons number.
2,8,3 because Aluminium has the Atomic Number 13
The answer is A hope this help
Answer:
The correct option is;
The electronegativity increases
Explanation:
The electronegativity is the measure of an atom's ability to attract a shared electron pair. The electronegativity of an atom is dependent on the atom's atomic number and the separation distance between the electrons in the valence shell and the positively charged nucleus such that an increase in the atomic number results in an increase in electronegativity and an increase in the distance between the valence electrons and the nucleus, leads to a decrease in electronegativity.
