1. What is a particle in the nucleus with no electrical charge?
a. Atomic number
b. Isotope
c. Electron
d. Neutron
2. What is an atom or group of atoms that has a net electrical charge?
a. Compound
b. Ion
c. Crystal
d. Neutron
3. An atom or group of atoms that has a net positive charge is called a(n) _________.
a. Ion b. cation c. anion d. compound
4. How many protons does an atom have if it has an atomic number of 12?
a. 12 b. 6 c. 3 d. 10
5. Hydrogen is the simplest and the lightest element. It has an atomic number of 1. How many protons does Hydrogen atom have?
a. 1 b. 2 c. 3 d. 4
6. Helium is an inert gas that is found in large amounts in the core of the stars as a product of thermonuclear fusion. It has an atomic mass of 4 and atomic number of 2. How many neutrons does a Helium atom have?
a. 1 b. 2 c. 3 d. 4
7. Isotopes are atoms of the same element with the same number of protons and ___________.
a. A different number of electrons.
b. A different number of molecules.
c. A different number of neutrons.
d. The same number of neutrons.
8. In a neutral atom, the number of protons _____________ the number of electrons.
a. Equals b. is less than c. is greater than
9. An atoms becomes negatively charged by _______.
a. Gaining an electron
b. Losing an electron
c. Losing a proton
d. Gaining a neutron
10. A(n) ______________ is a positively charged particle in the nucleus of an atom.
a. Proton b. electron c. neutron d. positron
11. An atom or group of atoms that has a net negative charge is called a(n) _________.
b. Ion b. cation c. anion d. compound
Answers & Comments
Explanation:
HOPE ITS HELP PO
Answer:
1. Neutron
2. Ion
3. Cation
4. 12
5. 1
6. 2
7. A different number of neutrons.
8. Equals
9. Gaining an electron
10. Proton
11. Anion
That's the answers po!