I am the guardian of the atomic kingdom. Welcome to visit us. "An elf came to Xiaotao and received him politely. Later, Momo followed the elf to the capital of the atomic kingdom.
"Your Majesty, this is a guest from afar. He has come to visit our kingdom." The elf said to Momo, "This is our king." .
Welcome to visit! Welcome to visit! Please sit down! Please sit down! The king warmly received Xiao Tao in a small living room.
"I am the king of the atomic kingdom, positively charged, and people call me proton. This is my queen. She has no charge. People call her neutron. We combine with each other to form the core organization of the atomic kingdom-the nucleus, which is in charge of the country's' internal affairs'. For example, the type of our atomic kingdom is up to me; The quality of our atomic kingdom is mainly decided by me and the queen. "
"Just take you to the guard is negatively charged, people call it electronic. These guards move around our' national capital' at high speed day and night, always defending our country. "
"In our atomic kingdom, a king has only one guardian, and the number of positive charges brought by the king is equal to the number of negative charges brought by the guardian, but the electrical properties are opposite, so our atomic kingdom as a whole is not obvious to the outside world, and it is very friendly to any kingdom in the micro world."
"The diplomacy of our atomic kingdom is mainly handled by these electronic guardians. We can form a new molecular kingdom in the microscopic world by exchanging a certain number of electrons with other atomic kingdoms; When our atomic kingdom loses or gains a certain number of electrons, it will form cations or anions, which combine with each other to form a new kingdom of ionic compounds.
"Thank you, your majesty! Thanks to the atomic kingdom for all its contributions to mankind! Xiao Tao bid farewell to the king and toured the atomic kingdom with electronic guards. Electronic told him:
"You can see that the capital of our atomic kingdom is very small. If we compare our kingdom to the size of your football field, our capital is just as big as an ant in the middle of the football field. But our capital almost concentrates the quality of the whole kingdom. "
"The mass of our atoms is very small. Scientists take112 as the standard. Compared with it, the mass of all other atoms is called relative atomic mass, so it is much more convenient for people to apply it. In our atomic kingdom, the mass of each proton and neutron in the nucleus is approximately equal to 1, while the mass of an electron is approximately equal to the mass of the proton.
"In fact, in our microscopic world, different atomic kingdoms have different social systems and legal systems. For example, the marriage law is different, some practice monogamy, and a king has only one queen; Some practice polygamy, and a king has multiple queens. There is also a kingdom of hydrogen atoms, with only a king and no queen. "
"I tell you a secret. In our atomic kingdom, although the neutron queen is not charged, she dominates the fate of the atomic kingdom and plays an important role in the fusion and fission of the nucleus ... "
The bell ... the bell ... the alarm clock at the bedside woke Xiao Tao from her sleep. He carefully recalled his journey in the atomic kingdom and carefully recorded it. He came to school in high spirits and devoted himself to intense study.