#1
Which subatomic particle carries a positive charge?
1 answered
#2
What is the mass of an electron compared to a proton?
1 answered
#3
What does the atomic number of an element represent?
1 answered
#4
What term describes atoms of the same element with different numbers of neutrons?
1 answered
#5
What is the term for the total number of protons and neutrons in an atom?
1 answered
#6
Which subatomic particle is responsible for chemical bonding?
1 answered
#7
Who proposed the nuclear model of the atom?
1 answered
#8
Which of the following elements has the highest number of isotopes?
1 answered
#9
Which element has no neutrons in its nucleus?
1 answered
#10
What is the symbol for an atom with 6 protons, 6 neutrons, and 6 electrons?
1 answered
#11
Which scientist proposed the concept of quantized energy levels in an atom?
1 answered
#12
Which of the following elements has the highest electronegativity?
1 answered