1) The Neutrons doesn't have any charge. a) False b) True 2) These are unique forms of matter with specific chemical and physical properties. a) Atom b) Elements 3) These are positively charged particles which are present in the nucleus of an atom. a) Protons b) Electrons 4) How many elements are there in the periodic Table? a) 110 b) 118 5) What are the three important parts of an atom? a) Proton, Electron and Neutron b) Nucleus, Proton, Electron 6) How many number of protons in Gallium? (Atomic number- 31, Mass number- 69.723) a) 31 b) 39 7) How many number of neutrons does Neon have? (Atomic number- 10, Mass number- 20) a) 10 b) 20 8) What does the nucleus of an atom contain? a) Protons and Neutrons b) Protons and Electrons

Learning Check!

โดย
สั่งพิมพ์
ฝัง

ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

สลับแม่แบบ

คืนค่าการบันทึกอัตโนมัติ: ใช่ไหม