Question

Part 1: Mission Preparation: Use the following word bank to complete the sentences accurately.

atomic mass protons column electrons atomic number neutrons row 11 12 23

A. The _______________ ___________________ of an element includes atomic number plus the number of neutrons.

B. The atomic number represents the number of _____________________ and ___________________ in an element.

C. Elements found in the same_____________________ have similar chemical properties.

D. An element with an atomic number of 11 and an atomic mass of 23 will have __________ neutrons total.

Answer 1

The ________atomic mass_______ of an element includes atomic number plus the number of neutrons.
B. The atomic number represents the number of _________protons ____________ and ____________electrons_______ in an element.
C. Elements found in the same_________column____________ have similar chemical properties.
D. An element with an atomic number of 11 and an atomic mass of 23 will have _____12_____ neutrons total. atomic mass is the sum of electrons ,protons and neutrons. atomic number is the sum of protons and electrons. we can find the number of neutrons by subtracting atomic number from atomic mass.