The total number of protons and neutrons in an atom is called
A、theatomicnumber
B、theprotonnumber
C、themassnumber
D、theneutronnumber
发布时间：2025-11-18 17:38:45
请在 下方输入 要搜索的题目：
推荐参考答案 (
由 题搜搜 官方老师解答 )
答案：C
相关试题
- 1.The total number of protons and neutrons in an atom is called
- 2.Atoms are made from a nucleus of protons and neutrons and a cloud of electrons.
- 3.atom
- 4.The total number of Si atoms contained in each unit cell is ( ).
- 5.The nucleus of an atom contains __________.
- 6.The data channel from which a process receives input is called standard in or stdin and has a file descriptor
- 7.Total AMOUNT:
- 8.grand total ( )
- 9.The energy of a hydrogen atom in the first excited state is ( )
- 10.Total revenue equals
